Over the past decades, sea ice _____ in the Arctic as a result of global warming

题型：不详难度：来源：

Over the past decades, sea ice _____ in the Arctic as a result of global warming.

A．had decreased

B．decreased

C．has been decreasing

D．is decreasing

答案

解析

略

举一反三

It ______ long befor the Chinese Space Center ______ Shenzhou VII Spacecraft,becoming the third country to send an astronaut to "walk" in space after the United States and the former Soviet Union (now Russia).

A．will not be,launches

B．was not,launched

C．will be,launches

D．was not,had launched

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When the journalists caught up with the soldiers along the broken road finally,they ___ towards the earthquake - hit town at high speed.

A．advanced

B．were advancing

C．are advancing

D．were advanced

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I ________ up early this morning, so I stayed in bed until 8 o’clock a．m．

A．needn’t have got	B．didn’t need to get
C．shouldn’t have got	D．can’t have got

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---Why is the librarian looking so hard at me?
---You _______ to read aloud in the reading room.

A．don"t suppose

B．haven"t supposed

C．are not supposing

D．are not supposed

题型：不详难度：| 查看答案

Don’t worry! Philip is quite used to in such busy streets as this.

A．drive

B．be driving

C．have driven

D．driving

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