We find _______ difficult to talk to him about anything seri

I’d appreciate _______ if you would teach me how to use the computer.

A：that

B：it

C：this

D：one

David is a great teammate. He knows well how to work with ________.

A：both

B：other

C：others

D：another

Scientists are trying to develop a special material, _______ they will make use of in space.

A：that

B：what

C：it

D：one

There were many people standing by, but _____ of them were willing to help the poor boy.

A：neither

B：none

C：all

D：both

All of us want very much to see these amusing movies, especially _______ you referred to just now.

A：any

B：it

C：the one

D：one

Things have changed quickly over the past decade and life in the country is much better than      used to be．

A：that

B：it

C：what

D：one

Is this school ________ my father studied in when he was a child.

A：that

B：which

C：the one

D：/

As teachers, we feel         our duty to teach our children to be good wherever we are.

A：this

B：that

C：it

D：there is

—Do you want tea or coffee?—________.I really don’t mind.

A：None

B：Neither

C：Either

D：All

I am sorry I can’t spare any paper for you, for, you see, I have _____ myself.

A：none

B：on one

C：neither

D：nothing