Answer — Exercise 1

a)

1. Has
2. hasn't
3. Have
4. has
5. haven't
6. Has
7. haven't
8. have

b)

1. Have you read Elizabeth is Missing?
2. My brother has decided to get a new job.
3. I haven't studied for the exam.
4. They've seen the film,
5. He hasn't answered my email.
6. Have you called your brother?
7. I've finished the first series.
8. Have they posted their holiday photos on Facebook?

c)

1. Have you heard
2. 've read
3. have you read
4. Have you seen
5. has seen
6. I haven’t read
7. I've heard