Cleaning women in big cities usually get ________ by the hour．

A. pay　　　　    B. paying　　　　 C. paid　　　　 D. to pay

The mother didn't know ________ to blame for the broken glass as it happened while she was out.

A. who　　　　    B. when　　　　   C. how　　　　   D. what

Having a trip abroad is certainly good for the old couple, but it remains_____ whether they will enjoy it.

A. to see　　　　　　　　　　　　　　   B. to be seen

C. seeing　　　　　　　　　　　　　　   D. seen

It is said in Australia there is more land than the government knows________.

A. it what to do with　　　　　　    B. what to do it with

C. what to do with it　　　　　　    D. to do what with it

It was because of bad weather ________ the football match had to be put off.

A. so　　　　　　 B. so that　　　　 C. why　　　　  D. that

Only in this way ________ to make improvement in the operating system.

A. you can hope　　　　　　　　　　  B. you did hope

C. can you hope　　　　　　　　　　  D. did you hope

The purpose of new technologies is to make life easier, ________ it more difficult.

A. not make　　　　　　　　　　　　 B. not to make

C. not making　　　　　　　　　　   D. do not make

She will tell us why she feels so strongly that each of us has a role________ in making the earth a better place to live.

A. to have played　　　　　　　　　　 B. to play

C. to be played　　　　　　　　　　   D. to be playing

________late in the morning, Bob turned off the alarm.

A. To sleep　　　　　　　　　　    B. Sleeping

C. Sleep　　　　　　　　　　　　   D. Having slept

In some parts of London, missing a bus means________ for another hour.

A. waiting　　　　 B. to wait　　　　 C. to be waiting　　    D. wait