．Mother ______ us stories when we were young .A．was used to tellB．is used to tel

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．Mother ______ us stories when we were young .

A．was used to tell

B．is used to telling

C．used to tell

D． used to telling

答案

解析

略

举一反三

Every possible means ____, but none ____ successful．

A．has tried; has proved	B．tried; proves
C．has been tried; proves	D．is being tried; is proved

题型：不详难度：| 查看答案

.More patients ＿＿　in hospital this year than last year.

A．treated

B．have treated

C．had been treated

D．have been treated

题型：不详难度：| 查看答案

.After a fire broke out in the lab, a lot of equipment＿＿.

A．is damaged

B．had damaged

C．Damaged

D．was damaged

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.Great changes______in the city and a lot of factories______.

A．have been taken place…have been set up	B．have taken place…have been set up
C．have taken place…have set up	D．were taken place…were set up

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.This is Ted’s phone. We miss him a lot. He ___ trying to save a child in the earthquake.

A．killed

B．is killed

C．was killed

D．was killing

题型：不详难度：| 查看答案