quiz 24-5

1. Bill's mother won't let him go out with his friends _________.

• A.when he finished his homework
• B. after he had finished his homework
• C. once he finished his homework
• D. until he has finished his homewor

2. Her academic performance has greatly improved since she _____ her study methods.

• A. will change
• B. changed
• C. was changing
• D. would change

3. The air quality in this area has improved a lot since that factory ___.

• A. was closing
• B. would close
• C. closed
• D. will close

4. You will not know who your true friend is _____.

• A. after you had had trouble and needed help .
• B. when you were having trouble and needing help
• C. until you have trouble and need help
• D. as soon as you had trouble and needed help

5. Mary has been financially independent since she _____ to work.

• A. went out
• B. will go out
• C. was going out
• D. would go out

6. He won't understand what the responsibilities of a father are _____ .

• A. until he has his first child
• B. after he had had his first child
• C. as soon as he had his first child
• D. once he had his first child

7. ________,he will go out with his friends,

• A. When Tony finished his project
• B. When Tony finishes his project
• C. When Tony had finished his project
• D. When Tony was finishing his project

8. The students ________ the topic when the bell rang.

• A. discuss
• B. were discussing
• C. have discussed
• D. are discussing

9. When their dad came home,the kids _______ the Christmas tree.

• A. have decorated
• B. are decorating
• C. decorate
• D. were decorating

10_______,I will give it back to you.

• A. When I finish reading the book
• B. When I was finishing reading the book
• C. When I finished reading the book
• D. When I had finished reading the book