1 . It suddenly occurred to him ________ he had left his keys in the office.

A．whether	B．where
C．which	D．that

2 . I ________down to London when I suddenly found that I was on the wrong road.

A．was driving	B．have driven
C．would drive	D．drove

3 . It was the fourth time that he ____________ (be late) for school. (所给词的适当形式填空)

5 . Many major economic problems         to be solved, there is no point         the growth rate of this year now.

A．remained; to predict	B．remaining; to predict
C．remained; predicting	D．remaining; predicting

6 . The reason why he hasn’t come is ___________.

A．because his mother is ill	B．because of his mother’s being ill
C．that his mother is ill	D．for his mother is ill

7 . Though it is 30 years_______we last met, I still remember the scene_______we got separated on a rainy day.

A．before; where

B．before; which

C．since; when

D．since; where

8 . He was reported _________(cover) 30 miles on foot that day. (所给词的适当形式填空)

9 . 单句填空
1. The manager has decided to put ______ he thinks is energetic and clever in the position of the leadership of the company.
2. The government stressed that efforts must be made to prevent risks ______ (arise) from gathering of tourists.
3. But for the medical team’s efforts, more lives _______(claim) in this pandemic.
4. We choose this hotel because the price for a night is down to $ 20, half of _____ it used to charge.
5. What you did seems ______ (violate) the law. It won’t be long before you are sent into prison.
6. The importance of music and the effort ______ has on children’s intelligence development has been widely acknowledged.
7. It is necessary that every rule we set up _______(apply) to everyone.
8. Hard _______ the doctors had tried to save his life, the scholar died in the end.
9. It is the third time that the little boy __________ (subscribe) to China Daily.
10. TikTok, known as Douyin in China, is a social media platform ______ short videos can be edited and uploaded easily.