---Do you have trouble finishing the work? ---The work is not so difficult as you think.We have finished it already.
There was _________ no wind and the air was very hot.
---Where did you find your wallet? --- It was in the shop _______ I bought the shirt.
We talked about the things and persons _______ we remembered at school.
When he heard the _______ news that an earthquake occurred in Sichuan, he felt very___________.
The hostess kept talking with her mouth full of food,_____ all the guests embarrassed(尴尬的).