In order to guarantee the students’ health, the school offers them a bag of milk ________．

A．every

B．per

C．one

D．each

One day the young painter went to the artist’s studio and, ________ that the artist was not at home, decided to wait for him．

A．found

B．finding

C．finds

D．to find

The last time she saw them, they ________ put the mouse into the teapot．

A．tried to

B．tries to

C．were trying to

D．had tried to

The system of banking ________ on a basis of trust．

A．rests

B．sits

C．agrees

D．insists

It is generally considered unwise to give a child ________ he or she wants．

A．however

B．whatever

C．whichever

D．whenever

I’m afraid the tours to Huang Shan Mountain will ________ a lot of money as well as time．

A．call for

B．call in

C．call up

D．call upon

－________ you found out the accident which happened a month ago?

－By looking into it．

A．It was where that

B．Was it how that

C．How was it that

D．Was it what that

－Can I help you?

－I’d like to buy a present for my cousin, ________ at a proper price but of great use．

A．one

B．it

C．that

D．which

Having been ill in bed for nearly a month, he had a hard time ________ the exam．

A．pass

B．to pass

C．passed

D．passing

－He promised to come to see you．

－But he ________．I’ve been alone．

A．hasn’t

B．didn’t

C．wouldn’t

D．has not been