题目内容：

用所给单词的适当形式填空。

1.Linda can swim very fast. She is a good ___________ (swim).

2.It's late. We can't play any _________ (long).

3.Mary is much __________ (good) today.

4.That is a new boy. ___________ (He)name is Jack.

5.---- Here's your book. --- __________(Thank) a lot.