Grammar practice worksheet focusing on using "was" or "were" correctly in sentences.

Let's solve this grammar exercise step by step. The task is to fill in the blanks with "was" or "were", which are past tense forms of the verb "to be." We use:

- "was" for singular subjects (I, he, she, it, a person, a thing)
- "were" for plural subjects (you, we, they, multiple people or things)

Now let’s go through each sentence:

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1. I _____ reading.
- Subject: "I" → uses was
✔ I was reading.

2. She _____ sleeping.
- Subject: "She" → singular → was
✔ She was sleeping.

3. Her baby _____ crying.
- Subject: "baby" → singular → was
✔ Her baby was crying.

4. The boys _____ swimming.
- Subject: "boys" → plural → were
✔ The boys were swimming.

5. They _____ jumping on the bed.
- Subject: "They" → plural → were
✔ They were jumping on the bed.

6. A lot of students _____ working.
- "A lot of students" = plural → were
✔ A lot of students were working.

7. What _____ you doing?
- Subject: "you" → always takes were in past tense
✔ What were you doing?

8. Their babies _____ happy.
- "babies" → plural → were
✔ Their babies were happy.

9. A man _____ walking his dog.
- "A man" → singular → was
✔ A man was walking his dog.

10. He _____ working hard.
- "He" → singular → was
✔ He was working hard.

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✔ Final Answers:

1. was
2. was
3. was
4. were
5. were
6. were
7. were
8. were
9. was
10. was

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📝 Explanation Summary:

- Use was for singular subjects: I, he, she, it, one person, or a single object.
- Use were for plural subjects: you, we, they, multiple people, or objects.
- Even though “a lot of” might sound vague, “a lot of students” is plural, so were is correct.

This exercise practices the past continuous tense: was/were + verb-ing, used to describe actions that were happening at a specific time in the past.