Tens of thousands of trees _____ in the area in the past few years.A．have been p

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Tens of thousands of trees _____ in the area in the past few years.

A．have been planted

B．were planted

C．have planted

D．had planted

答案

解析

略

举一反三

Every means ______ prevent the water from ______.

A．are used to; polluting	B．is used to; polluting
C．is used to; polluted	D．is used to; being polluted

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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

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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

题型：不详难度：| 查看答案

Jenny is a nurse and ______in Town Hospital.

A．works

B．worked

C．had worked

D．working

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