They not only make it difficult to sleep at night, but they are ________ damage to our houses and shops of historical interest.

[　　]

A．doing　　　　 B．raising

C．putting　　　　D．producing

This is the first time ________ he has been here.

[　　]

A．that　　　　　　　　B．when

C．at which　　　　　　D．which

He made another wonderful discovery, ________ of great importance to science.

[　　]

A．which I think is　　　　B．which I think it is

C．which I think it　　　　D．I think is

These houses are sold at such a low price ________ people expected.

[　　]

A．like　　　　　　B．as

C．that　　　　　　D．which

In the dark street, there wasn't a single person________ she could turn for help.

[　　]

A．that　　　　　　　　B．who

C．for whom　　　　　　D．to whom

The general at last got a chance to visit the village, ________ he used to fight, ________ he had been dreaming of for years.

[　　]

A．that; which　　　　　　 B．where; that

C．in which; what　　　　　D．where; which

The old lady, ________ had been killed in the war, was given help by the local government.

[　　]

A．all her children

B．all of her children

C．all of whose children

D．whose all children

You should make it a rule to leave things ________ you can find them again.

[　　]

A．when　　　　　　B．where

C．which　　　　　　D．there

This kind of grass appears ________ it rains often.

[　　]

A．the places　　　　　　B．where

C．in which　　　　　　 D．the places where

To their great joy, the day they looked forward to ________ at last.

[　　]

A．coming　　　　　　B．had come

C．came　　　　　　　D．come