【推荐2】选词填空。

be, lose, thank, call, help

1. Tim ________ his keys on the way home, he must find it.
2. Can you ________ us to clean the room?
3. We should ________ our parents for raising us.
4. ________ her parents in America?
5. What about ________ him now?

【推荐3】根据句子意思，用括号中所给单词的适当形式填空。

fly       pollute       north       receive       wife

1. Now many people are used to ________ emails on the Internet.
2. Some husbands care less about their ________ feelings and don’t want to share housework with them.
3. Last month, I took my first direct ________ from Shanghai to Taiwan.
4. Millions of trees are just like a green Great Wall across the ________ part of China.
5. The air ________ makes me feel sick.