1 . We took it for granted ______ they would accept the proposal, so we think it no use ______ them eagerly.

A．if; convincing	B．that; to convince
C．that; convincing	D．if; to convince

2 . They always look for excuses to postpone ________ something. In the end, it never gets done.

A．to

B．doing

C．done

D．to doing

3 . I ______ an apology to you earlier, but failed because you ______ me since we last quarreled.

A．intended to make, had avoided meeting

B．intended to have made, had avoided to meet

C．had intended making, have avoided to meet

D．had intended to make, have been avoiding meeting

4 . I find it no use ________ about it now. I really regret ________ the exam.

A．to argue; to fail

B．arguing; to fail

C．to argue; failing

D．arguing; failing

5 . Children have been accustomed to ________ masks when ________ to the public in recent years.

A．wear; exposed	B．wearing; being exposed
C．wear; being exposed	D．wearing; exposed

6 . Go on ________ the other exercise after you have finished this one.

A．to be doing

B．doing

C．with

D．to do

7 . We’ve enjoyed having you on board and look forward ________you again in the near future.

A．to see

B．to seeing

C．at seeing

D．on seeing

8 . Edison, along with many other scientists, _______ us and taught us that conducting experiments is a scientific approach _______ the truth.

A．has inspired; to establish	B．have inspired; to establish
C．has inspired; to establishing	D．have inspired; to establishing

9 . This is Professor Wang, in ________ class I learn a lot and gradually take to ________ English novels.

A．which; read

B．whose; reading

C．his; read

D．which; reading

10 . Impossible ________ it is for us to live in an environment free of pandemic, we had better try our best to avoid ________.

A．however; affected	B．though; to be affected
C．although; being affected	D．as; being affected