用所给词的适当形式填空。

1. You should make a New Year's               (resolute) .

2. He takes lots of              (exercise) in his spare time.

3. Your plan sounds really              (interest).

4. When did you learn              (ride) a motorbike?

5. Everyone must take               (swim) lessons.

下列选项中，（）的球根贮藏时需要较干燥的环境。

A.百合

B.郁金香

C.大丽花

D.美人蕉