Sure, here are the correct tenses for the verbs in brackets:

1. They'd do it if they **could**. (can -> could)
2. If dinner is not ready, I **will go** without it. (go -> will go)
3. The child **would have been** killed if the bus hadn't stopped in good time. (be -> would have been)
4. If you don't shut that window, I **will die** of cold. (die -> will die)
5. I wouldn't do that work if I **were** you. (be -> were)
6. If they'd known you were here, they **would have come** sooner. (come -> would have come)
7. If it **is** convenient, let's meet at ten o'clock. (be -> is)
8. I'd have helped you if I **had** free time. (have -> had)
9. You shouldn't wait for us if we **are** late. (be -> are)
10. If you behave properly, you **will receive** a present. (receive -> will receive)

These corrections adjust the verbs to the appropriate tenses based on the conditional or hypothetical contexts provided in each sentence.

A. Supply the correct form of the verbs in parentheses

1. You'll have enough time to climb in the mountain if you (get) there early.

2. His perents (be) very happy if he worked hard.

3. If you study your lessons carefully, you (get) good marks.

ivere 4. If today (be) Sunday, I (take) you to the circus.

5. People would understand you better if you (speak) more slowly.

6. If it's rainy heavily, we (not go) for a donkey ride.

7. The show (be) more interesting if there were more per- forming animals.

8. What you (do) if you (be) a good driver ?

9. Your sister (come) here at about 5:00 p.m. tomorrow if she (start) early in the morning.

10. If he (try) hard, he'll pass the examination.

Sure, here are the correct tenses for the verbs in brackets:

1. They'd do it if they **could**. (can -> could)
2. If dinner is not ready, I **will go** without it. (go -> will go)
3. The child **would have been** killed if the bus hadn't stopped in good time. (be -> would have been)
4. If you don't shut that window, I **will die** of cold. (die -> will die)
5. I wouldn't do that work if I **were** you. (be -> were)
6. If they'd known you were here, they **would have come** sooner. (come -> would have come)
7. If it **is** convenient, let's meet at ten o'clock. (be -> is)
8. I'd have helped you if I **had** free time. (have -> had)
9. You shouldn't wait for us if we **are** late. (be -> are)
10. If you behave properly, you **will receive** a present. (receive -> will receive)

These corrections adjust the verbs to the appropriate tenses based on the conditional or hypothetical contexts provided in each sentence.