The children planted more trees and flowers after they______Greener China.A．join

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The children planted more trees and flowers after they______Greener China.

A．joined

B．took part in

C．became

D．were

答案

解析

略

举一反三

I must return the camera to Cindy. I ______it for two weeks.

A．keep

B．borrowed

C．have kept

D．have lent

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---It’s more and more important to protect our earth.
----I think so. If everyone ______a contribution to it, our world will be more beautifu..

A．make

B．makes

C．will make

D．make

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Jenny is a nurse and ______in Town Hospital.

A．works

B．worked

C．had worked

D．working

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----Where is Sandy?
----He ______to anwer the phone. He’ll be back in a minute.

A．had gone

B．has gone

C．has been

D．went

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The film ______for ten minutes.

A．has begun

B．has been begun

C．has been on

D．began

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