The key answer of exercise 5

a)

1. She asked me whether I'd known her long.
2. I asked the police officer what the time was.
3. The lawyer asked the witness if she had ever seen the man before.
4. My grandma asked me why I didn't visit her more often.
5. Luc asked Vanessa whether she'd like to go out for dinner.
6. They asked us whether we thought we were ready for the challenge.
7. The teacher asked Tony who the president of Australia was.
8. The waiter asked us whether we'd like to see the dessert menu.

b)

1. Have you known her long?
2. What's the time?
3. Have you ever seen the man before?
4. Why don't you visit me more often?
5. Would you like to go out for dinner?
6. Do you think you're ready for the challenge?
7. Who is the president of Australia?
8. Would you like to see the dessert menu?