用所给动词的适当形式填空。

1. Thank you for _____ ( give ) me the picture of Li Yuchun.

2. My twin brother often _____ ( dress ) up as a cool boy.

3. May Day _____ ( come ). What are you going to do?

4. I'd like _____ ( drink ) some black tea.

5. He and I _____ ( not be ) busy now.

在儿科麻醉中唯一对于没用术前用药的小儿可以较好地诱导的吸入麻醉药是（）

A.氟烷

B.异氟醚

C.恩氟烷

D.七氟

E.地氟烷