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题目
题型:不详难度:来源:
By the middle of the 1920s the farthest corners of the earth       explored.
A.areB.wereC.have beenD.had been

答案
D
解析

核心考点
试题【By the middle of the 1920s the farthest corners of the earth       explored.A.ar】;主要考察你对一般现在时等知识点的理解。[详细]
举一反三
—Ouch! You hurt me!
—I am sorry. But I   any harm. I      to drive a rat out.
A.didn’t mean; triedB.don’t mean; am trying
C.haven’t meant; triedD.didn’t mean; was trying

题型:不详难度:| 查看答案
________ we ________ much longer, we might not even have had the spot on the rooftop.
A.Should; hesitateB.Was; hesitatingC.Did; hesitateD.Had; hesitated

题型:不详难度:| 查看答案
If  we ___________some measures, we might have prevented the environmental pollution.
A.takeB.had takenC.tookD.have taken

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My arrival was timed perfectly; it was the second weekend of November, when the world largest wine auction ________.
A.heldB.was being held C.was heldD.was to hold

题型:不详难度:| 查看答案
— ________ he ________ anything about this historic site?
— Yes. That’s why he suddenly becomes so obsessed with it.
A.Has; readB.Does; readC.Did; readD.Had; read

题型:不详难度:| 查看答案
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