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

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 decreasedB.decreasedC.has been decreasingD.is decreasing

答案
C
解析

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,launchesB.was not,launchedC.will be,launchesD.was not,had launched

题型:不详难度:| 查看答案

When the journalists caught up with the soldiers along the broken road finally,they ___ towards the earthquake - hit town at high speed.
A.advancedB.were advancingC.are advancingD.were advanced

题型:不详难度:| 查看答案

I ________ up early this morning, so I stayed in bed until 8 o’clock a.m.
A.needn’t have gotB.didn’t need to get
C.shouldn’t have gotD.can’t have got

题型:不详难度:| 查看答案

---Why is the librarian looking so hard at me?
---You _______ to read aloud in the reading room.
A.don"t supposeB.haven"t supposedC.are not supposingD.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.driveB.be drivingC.have drivenD.driving

题型:不详难度:| 查看答案
最新试题
热门考点

超级试练试题库

© 2017-2019 超级试练试题库,All Rights Reserved.