1 . It is very challenging for a student to keep a b________ between study and rest. (根据首字母单词拼写)

2 . It was 5 o'clock ______ the visitors finally arrived at Pudong International Airport.

A．that

B．when

C．before

D．after

3 . Hearing the interesting story, all the people present b_______ into laughter. (根据首字母单词拼写)

4 . We are now enjoying the cool air in the room . _____ ，the farmers are harvesting crops in the hot sun .

A．Therefore	B．Besides
C．As a result	D．In the meanwhile

5 . Over 20,000 victims in the USA were killed in the Covid－19 outbreak and it seemed that Trump administration was _________.(应受责备). （根据汉语意思填空）

6 . __ __ many Chinese women have received higher education, there are still obstacles that prevent them from enjoying the same opportunities for education and employment as men．

A．Whether

B．Because

C．When

D．Although

7 . The accident that happened at an oilfield____ the southeast coast of the U．S．A has caused great damage to the environment.

A．away

B．from

C．beyond

D．off

8 . According to the information from the airline, a small sinking part of the runway of the airport is _____________ for the accident.

A．to blame

B．to be blamed

C．to blaming

D．to be blaming

9 . China has been pushing the reform of public hospitals ________ all its citizens.

A．in charge of	B．for the purpose of
C．in honor of	D．for the benefit of

10 . .I should thank you      that you should thank me.

A．because

B．rather than

C．for

D．as