Must I finish my homework at school—No, you_____. you can do it at home

_______ of taking a bribe(贿赂), the official was being investigated.[ ]

As we know it’s difficult to live in a foreign country.— if you can’t understand the language there.

21All parents are willing to risk ________ their lives tosave ________ of their children when a disaster is approaching

Mary is going to Shanghai for the winter vacation.– _______________