问题
填空题
用所给词的适当形式填空。
1. I don't know how _______ ( do ) it.
2. Zhang Yong is one of the famous ________ (swim) in China.
3. It's hard to give up _ ______ (smoke) , but you have to.
4. I have ______ (be) to the Great Wall twice.
5. Shanghai is ______ (locate) in the east of China.
答案
1. to do 2. swimmers 3. smoking 4. been 5. located