Exercise 33.1: Must or should

Fill in the blank with must or should.

Example: I don't think he ____ go to school today.
Answer: I don't think he should go to school today.

1. Look at your teeth! You really ____ go to the dentist.

2. You think I'm going to buy that? You ____ be joking.

3. I was stupid to buy that ring. I ____ have realized it was a fake.

4. It was a mistake to let in that goal. He ____ be feeling terrible right now.

5. I know I ____n't have this cake, but I'm going to.

Unit 33