It's impossible ________ her to finish all the washing in half an hour because she is lazy enough ________ the housework at home．

A．of; to do

B．of; not to do

C．for; not to do

D．for; to do

The boy who looks nice ________ white hasn't decided ________ next．

A．in; how to do

B．in; what to do

C．on; what to do it

D．on; how can I do

Things are ________ on Mars ________ on Earth because of the gravity．

A．much lighter; than that

B．much light; than those

C．not so light; as that

D．not so light; as those

In East China, the number of people who ________ cars of their own ________ now increasing quickly．

A．has; are

B．there is; are

C．there are; is

D．have; is

The terrible earthquake ________ the country, ________ , ________ people were missing．

A．attacked; in a result; million

B．hit; as a result; millions of

C．attacked; so that; thousands of

D．hit; at last; thousand

Many people believe we will face environmental disasters ________ we completely change the way we live．

A．but

B．though

C．unless

D．until

It's ________ nice silk dress that ________ of the twins wants to buy it．

A．so; either

B．such a; either

C．so a; both

D．such a; both

The doorbell is ringing．It ________ Alice, because she ________ Washington．

A．can't be; has left for

B．may be; has been to

C．mustn't be; has gone to

D．can't be; has left to

Yesterday Shirley advised me to buy my daughter ________ iPad as a birthday present．________ useful advice she offered me!

A．a; How

B．an; What a

C．an; What

D．/; How an

His aunt ________ Beijing and she will stay there for three years．

A．has gone for

B．has been to

C．has left

D．has left for