题目内容：

。

take part in    look after    heard of    has been to    enjoy yourself

1.Did you ________ ________ on the beach last week？

2.We have never ________ ________ the matter before．

3.Han Li ________ ________ ________ San Francisco in the USA.

4.Sue was very happy to ________ ________ ________ the game.

5.It’s difficult for her to ________ ________ the sick boy．