- The 10th China Flower Expo is being held in Chongming. ________ does it last?
- About 40 days.
How long
How soon
How far
How often
--- Don’t step on the grass next time, Mike. ---________.
They _______ in Nanjing since they came to China two years ago.
I don’t know when my son ________ back. When he_________ back, I’ll call you.
---Must I finish doing my homework now, Mum? ---No, you ________.
---_______ beautiful music it is!