=>
IX/
1. made
2. play
3. told
4. would
X/
1. isn't she
2. didn't they
3. won't they
4. doesn't he
5. could she
XI/
1. He said, " Why don't we go on a camping trip?"./ He said, "Let's go on a camping trip."
2. I wish we could work out this math problem.
3. The heavy rain prevented them from continuing the match.
4. This hotel has been run by Jane's father for ten years.
5. Tim said,"I am keen on Vietnamese."
6. Tom asked Nga if she intended to take an immersion course in English.
XII/
1. Have you finished
2. had
3. sat
4. had begun/arrived
5. Is Jane revising
6. having
7. playing
8. visiting
9. haven't seen