1 . 我们的航班被推迟，这意味着我们要在机场等待4个小时。(delay)

2 . 请你建议我们应该做些什么来保护野生动植物你呢?(suggest)

3 . 你认为中国的熊猫正处在危险中吗？(in danger)

4 . Only when it is hungry ______ a human being.

A．a lion will attack	B．a lion should attack
C．will a lion attack	D．should a lion attack

5 . Dr Yuan Longping grows _____ is called super hybrid rice, _____ has a high output.

A．what; which	B．that; what
C．that; which	D．what; that

6 . ---Do you want to come with us?
---No, I would rather ______ at home than _____ with you.

A．to stay; go	B．to stay; to go
C．stay; go	D．stay; to go

7 . My teacher as well as my classmates _____ very kind to me.

A．are

B．is

C．do

D．does.

8 . It took a long time for the connection between body temperature and illness ________.

A．to make	B．to be made
C．making	D．being made

9 . The house rent is expensive. I’ve got about half the space I had three years ago and I’m paying ______ now.

A．as three times much	B．as much three times
C．much as three times	D．three times as much