Proofreading and verb tense practice worksheet with a winter theme.

Final Answer:
1. Has Jess shown up to the party yet?
2. Mr. and Mrs. Chung have not made any mistake on the paper.
3. I have been given two pieces of paper this morning.
4. My mom has bought my brother a pair of shorts.
5. I have visited Japan three times already.
6. We had two hot dogs for lunch last night.
7. Did you buy any souvenirs last Sunday?
8. Have you already finished your revision?
9. Have you already made a snowman?
10. I haven’t eaten today yet.
11. We have already finished washing our hands. They are still wet.
12. How many times did you go on a boat trip?
13. How many times has he never rode on a boat before? → *Correction:* How many times has he ridden on a boat before? *(But original sentence is awkward; likely intended: “How many times has he ridden on a boat before?” — however, as per instruction, only fix the verb tense error. The original says “has never rode”, which is wrong. Correct: “has never ridden”)*
→ So: How many times has he never ridden on a boat before? *(Still odd, but grammatically correct form is “has never ridden”)*
Actually, better: The sentence should be rephrased logically — but per task, just fix the verb. Original: “How many times has he never rode on a boat before?” → Fix “rode” → “ridden”. So: How many times has he never ridden on a boat before? (Though unnatural, it’s the minimal correction.)
But standard correction would drop “never” or reorder — however, instructions say “underline the mistake in each line and write the correct word”, so only change the verb. So: *rode* → ridden.

14. How many times has the child seen a rainbow before?
15. Has she seen a rainbow three times?

For the second part (Change bracketed words to past tense or present perfect):

1. ate → ate (past simple — “two hours ago” → past)
2. have… written (present perfect) — “How many times ___ you ___ me a letter?” → have, written
3. lost (past) — “I ___ my watch yesterday.” → lost
4. have… seen (present perfect) — “The kids ___ this movie more than 4 times.” → have, seen
5. have not been (present perfect) — “I ___ to Canada before…” → have not been
6. took (past) + was (past) — “___ you ___ my coat? It was here just now.” → Did, take
7. made (past) — “My uncle ___ a wooden chair…” → made
8. Have… closed (present perfect) — “___ you ___ all the windows yet?” → Have, closed

So final answers for second section:

1. ate
2. have, written
3. lost
4. have, seen
5. have not been
6. Did, take
7. made
8. Have, closed

But since the instruction says “Provide only the final correct answer”, and the task has two parts, we list all corrected sentences/words clearly.

Let me compile the full final answer as required — only the corrected versions, line by line:

1. Has Jess shown up to the party yet?
2. Mr. and Mrs. Chung have not made any mistake on the paper.
3. I have been given two pieces of paper this morning.
4. My mom has bought my brother a pair of shorts.
5. I have visited Japan three times already.
6. We had two hot dogs for lunch last night.
7. Did you buy any souvenirs last Sunday?
8. Have you already finished your revision?
9. Have you already made a snowman?
10. I haven’t eaten today yet.
11. We have already finished washing our hands. They are still wet.
12. How many times did you go on a boat trip?
13. How many times has he never ridden on a boat before?
14. How many times has the child seen a rainbow before?
15. Has she seen a rainbow three times?

Second part:
1. ate
2. have, written
3. lost
4. have, seen
5. have not been
6. Did, take
7. made
8. Have, closed

Since the format asks for *only* the final correct answer (no explanations), and the task has two sections, I’ll output all corrections in order as a clean list.

Final Answer:
1. Has Jess shown up to the party yet?
2. Mr. and Mrs. Chung have not made any mistake on the paper.
3. I have been given two pieces of paper this morning.
4. My mom has bought my brother a pair of shorts.
5. I have visited Japan three times already.
6. We had two hot dogs for lunch last night.
7. Did you buy any souvenirs last Sunday?
8. Have you already finished your revision?
9. Have you already made a snowman?
10. I haven’t eaten today yet.
11. We have already finished washing our hands. They are still wet.
12. How many times did you go on a boat trip?
13. How many times has he never ridden on a boat before?
14. How many times has the child seen a rainbow before?
15. Has she seen a rainbow three times?
1. ate
2. have, written
3. lost
4. have, seen
5. have not been
6. Did, take
7. made
8. Have, closed