Fill in the blanks with appropriate auxiliary verbs. Each question has only one correct answer. Choose the most appropriate one.

1. He ………………. writing a novel. (is / am / has)

2. He ……………….. to retire next year. (is / am / was)

3. They ……………….. marching forward. (are / have / will)

4. The dinner ………………. being cooked. (is / has / will)

5. They …………………. being questioned. (are / has / will)

6. They ………………… engaged in a heated argument. (were / will / am)

7. I ………………. a cable from my son in New York. (am / had / was)

8. They ……………….. violated the agreement. (have / are / were)

9. She ……………….. never promised to do it. (had / is / were)

10. I …………………. forgotten to post the letter. (am / had / was)

Answers

1. He is writing a novel.

2. He is to retire next year.

3. They are marching forward.

4. The dinner is being cooked.

5. They are being questioned.

6. They were engaged in a heated argument.

7. I had a cable from my son in New York.

8. They have violated the agreement.

9. She had never promised to do it.

10. I had forgotten to post the letter.