Prices of daily good ________ through a computer can be lower than store prices.

[　　]

A．are bought　　　　　　B．bought

C．been bought　　　　　D．buying

I'd like a car ________ the front lights are big and round.

[　　]

A．which　　　　　　B．who

C．whose　　　　　　D．of which

________, we get the itch for adventure.

[　　]

A．Every now and then

B．Again and again

C．Now and again

D．Both A and B

________ to sunlight for too much time will do harm to one's skin.

[　　]

A．Exposed

B．Having exposed

C．Being exposed

D．After being exposed

A new law ________ to prevent the factories from sending out waste water into rivers.

[　　]

A．has been past　　　　　　　B．has passed

C．has been passed　　　　　　D．has past

　　——George and Lucy got married last week. Did you go to their wedding?

　　——No, I ________. Did they have a big wedding?

[　　]

A．was not invited

B．have not been invited

C．hadn't been invited

D．didn't invite

More patients ________ in hospital this year than last year.

[　　]

A．treated

B．have treated

C．had been treated

D．have been treated

The silence of the library ________ only by the sound of pages being turned over.

[　　]

A．has been broken　　　　　B．breaks

C．broke　　　　　　　　　D．was broken

These wild flowers are so special that I would do ________ I can to save them.

[　　]

A．whatever　　　　　B．that

C．which　　　　　　D．which

I should have been there, but I ________ not find the time.

[　　]

A．would　　　　　　B．could

C．might　　　　　　D．should