She found her calculator ________ she lost it．

A．where

B．when

C．it which

D．that

Space exploration has been made ________ with the development of modern science and technology．

A．it possible

B．it was possible

C．that possible

D．possible

－Are you sure you really want it?

－________, I am willing to pay ________ price you ask．

A．No, no matter what

B．Yes, no matter what

C．no, whatever

D．Yes, whatever

The artist made up his mind to devote all he could ________ his English before going abroad．

A．improve

B．to improve

C．to improving

D．improving

With the development of science, more and more technology ________ to the fields of IT．

A．has introduced

B．is being introduced

C．is introduced

D．was introduced

It’s certain that he will ________ his father’s business when he is experienced enough．

A．take over

B．think over

C．hand over

D．go over

Don’t mention that at the beginning of the story, or it may ________ the shocking ending．

A．give away

B．give out

C．give up

D．give off

you can take anything from the shelf and read, but please ________ the books when you’ve finished with them．

A．put on

B．put down

C．put back

D．put off

The country he was used to ________ greatly since 1992．

A．change

B．has changed

C．changing

D．have changed

To enjoy the scenery, Irene would rather spend long hours on the train ________ travel by air．

A．as

B．to

C．than

D．while