1. I advise __________ harder. (study)
2. I regret __________ you that we can’t accept your order. (tell)
3. He hates __________ (wait)
4. He pretends __________ an idiot. (be)
5. She refused __________ us. (help)
6. Don’t forget __________ the door before you leave. (lock)
7. Your car needs __________. (service)
8. She practices __________ English every day. (speak)
9. It is no good __________ to him. (talk)
10. What do you mean __________ about the leaky pipes? (do)