用所给单词的适当形式填空。

1. There are lots of _____ (star) in the sky in the evening.

2. What time _____ (do) Jim go to school every day?

3. My favourite subject _____ (be) English.

4. Our school art festival is very _____ (success).

5. We must brush our _____ (tooth) twice a day.

射干的性状主要特征是
紫菀的性状主要特征是

A.呈不规则节状，有分枝;气微，味苦、微辛

B.呈长纺锤形略弯曲;气微，味甜、微苦

C.根茎不规则块状，其上簇生多数细根;气微香，味甜、微苦

D.圆锥形;无臭，味淡，嚼之有麻辣感

E.不规则结节状圆柱形，有分枝;气浓香，味辛、苦、微麻