用动词的适当形式填空。

1. I ______ (have,had) an English breakfast yesterday morning.

2. When did you ______ (go,went) to Xinjiang?

3. My grandfather is ______ (learnt,learning) English now.

4. Many years ago, my uncle ______ (lived,lives) in a small house.  Now, he _____ (lived,lives) in a big

    house.

5. The books about animals ______ (is,are) on Shelf A.

6. Who has ______ (gets,got) a new bike?

静脉全身麻醉的缺点是（）。

A.操作简单，可控性差

B.室内空气无污染

C.麻醉效应可以逆转

D.对呼吸道无刺激

E.给药方式多样化