Mrs. Jones likes living ______ the climate is mild.

[　　]

A．in which

B．where

C．which

D．that

______ buses will be widely used in order to make the air clean.

[　　]

A．Electric

B．An electric

C．An electrical

D．Electricity

It’s rather dangerous to let him ______ such an old car.

[　　]

A．to risk driving　　B．run the risk of driving

C．risk to drive　　　D．run the risk to drive

You must be tired．It’s better for you ______ a rest.

[　　]

A．to come down and having

B．come down and to have

C．coming down and having

D．to come down and have

The horse ________ the tree disappeared. Where has it gone?

[　　]

Handle the glasses with care; they ________ .

[　　]

A．break easily

B．are broken easily

C．break easy

D．are broken easy

It's windy. Put on this jacket. It will _______ you _______ the cold.

[　　]

First, fix a very sharp piece of metal, _______ a foot or so above the frame.

[　　]

________ the experiment, you need some oil.

[　　]

A．To carry out

B．In order to find

C．So as to do

D．So that

They were made ________ 14 hours a day.

[　　]