用所给词的适当形式填空
1. Don’t worry(担心)! Let me help you __________ (clean) it.
2. Tom __________ (listen) to the radio every morning, but he __________ (not listen) to it now.
3. Do you know the famous singer __________ (call) Cai Yilin?
4. —What is he doing?
—He is learning __________ (make) dumplings.
5.—Keep quiet, kids. Dad __________ (sleep) in the next room.
—OK. Mum.