1 . 用can或must填空
1. My phone ________have been stolen while I was taking a bus. I can't find it anywhere.
2. I'm hungry. I ________eat two bowls of rice now.
3. You not ________touch other people's head in this country as it will, according to local people, bring had luck to both of you.
4. —Why________ you stay in the countryside where it's not convenient to go shopping?
—Because I've found it beneficial to my health.
5. As far as I am concerned, the air crash ________not have been caused by a bomb attack.
6. You________ not be tired—you've only been working for ten minutes.
7. It is usually warm in my hometown in March, but it________ be rather cold sometimes.
8. Many rare animals are dying out. We________ find ways to protect our environment.

2 . 选词填空must/have to
1. He missed the bus and __________ walk home.
2. You _________ pay the money, but you needn’t do so at once.

3 . There__________ be a number of people in my position.
一定有很多人处在我这种境况。

4 . 要成为成功人士, 我们必须能掌握自己。(charge) （汉译英）