课文原句重点词组或搭配填空。

1. I ______ live this lifestyle ______ a good wife.

2. I have to ______ _______ they are free of sickness.　

3. I am always _______ ______ ______ to get to the office.

4. Usually, it's _______ ______ ______ I can't find anywhere to sit.

是比较理想的减肥方法。