Humorous illustration depicting a man's chaotic day, where he loses his wallet and suitcase, accidentally knocks over ink, and is startled by false teeth in his coffee, all while his friend Linda tries to help.

To solve the problem, we need to fill in the blanks with the correct verb forms based on the context of the story. The story is written in past tense, so most verbs should be in their past tense or past participle forms. Let's go through each blank step by step:

1. Larry ______ (have) a very strange day.

- Since the story is in past tense, we use the past tense of "have," which is had.
- Answer: had

2. Not only did he lose his wallet but also his suitcase. Yes, that’s how his day ______ (start).

- The day "started" in the past, so we use the past tense of "start," which is started.
- Answer: started

3. Somebody ______ (steal) it while he was waiting for a bus or he simply ______ (forget) to take it.

- For "steal," we use the past tense, which is stole.
- For "forget," we use the past tense, which is forgot.
- Answers: stole, forgot

4. He ______ (not, know) how it ______ (happen).

- For "know," we use the past tense, which is knew, and add "did not" to indicate negation: did not know.
- For "happen," we use the past tense, which is happened.
- Answers: did not know, happened

5. Anyway, he ______ (begin) working as usual.

- We use the past tense of "begin," which is began.
- Answer: began

6. He ______ (take out) some papers from the drawer.

- We use the past tense of "take out," which is took out.
- Answer: took out

7. Then, he accidentally ______ (knock over) the ink bottle.

- We use the past tense of "knock over," which is knocked over.
- Answer: knocked over

8. The ink ______ (ruin) all the documents on the desk.

- We use the past tense of "ruin," which is ruined.
- Answer: ruined

9. His boss ______ (scream) at him and all he ______ (can) do was cry.

- For "scream," we use the past tense, which is screamed.
- For "can," we use the past tense, which is could.
- Answers: screamed, could

10. After some time, he ______ (pull) himself together and ______ (apologize) for all the mess.

- For "pull," we use the past tense, which is pulled.
- For "apologize," we use the past tense, which is apologized.
- Answers: pulled, apologized

11. Right after that, he ______ (be) on his way to his office when he ______ (trip over) a book and almost ______ (break) his arm.

- For "be," we use the past tense, which is was.
- For "trip over," we use the past tense, which is tripped over.
- For "break," we use the past tense, which is broke.
- Answers: was, tripped over, broke

12. His friend, Linda, ______ (see) it all and ______ (decide) to bring him some coffee.

- For "see," we use the past tense, which is saw.
- For "decide," we use the past tense, which is decided.
- Answers: saw, decided

13. It ______ (be) too much for the poor man that day. He ______ (need) a break.

- For "be," we use the past tense, which is was.
- For "need," we use the past tense, which is needed.
- Answers: was, needed

14. When she ______ (make) a cup of coffee for him, she ______ (take) it into his office and ______ (put) it on his desk.

- For "make," we use the past tense, which is made.
- For "take," we use the past tense, which is took.
- For "put," we use the past tense, which is put.
- Answers: made, took, put

15. He ______ (want) to take a sip when, to his surprise and horror, he ______ (notice) that there ______ (be) false teeth in the cup.

- For "want," we use the past tense, which is wanted.
- For "notice," we use the past tense, which is noticed.
- For "be," we use the past tense, which is were (since "false teeth" is plural).
- Answers: wanted, noticed, were

16. His friend, Linda, ______ (say) later on that she ______ (not, know) anything about it.

- For "say," we use the past tense, which is said.
- For "know," we use the past tense, which is knew, and add "did not" to indicate negation: did not know.
- Answers: said, did not know

17. ______ (be) it just bad luck or was somebody playing dirty tricks on him?

- This is a question, and we use the past tense of "be," which is was.
- Answer: Was

Final Answer:

```
Larry had a very strange day. Not only did he lose his wallet but also his suitcase. Yes, that’s how his day started. Somebody stole it while he was waiting for a bus or he simply forgot to take it. He did not know how it happened. Anyway, he began working as usual. He took out some papers from the drawer. Then, he accidentally knocked over the ink bottle. The ink ruined all the documents on the desk. His boss screamed at him and all he could do was cry. After some time, he pulled himself together and apologized for all the mess. Right after that, he was on his way to his office when he tripped over a book and almost broke his arm. His friend, Linda, saw it all and decided to bring him some coffee. It was too much for the poor man that day. He needed a break. When she made a cup of coffee for him, she took it into his office and put it on his desk. He wanted to take a sip when, to his surprise and horror, he noticed that there were false teeth in the cup. His friend, Linda, said later on that she did not know anything about it. Was it just bad luck or was somebody playing dirty tricks on him?
```

Final Answer: \boxed{had, started, stole, forgot, did not know, happened, began, took out, knocked over, ruined, screamed, could, pulled, apologized, was, tripped over, broke, saw, decided, was, needed, made, took, put, wanted, noticed, were, said, did not know, Was}