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题目
题型:不详难度:来源:
—Why is the house in a mess?
—I         it for Christmas since three days ago.
A.cleanedB.cleans
C.have cleanedD.have been cleaning

答案
D
解析

试题分析:句意:--为什么房子那么乱?--为了圣诞节我已经打扫三天了。由题干上下文中可知,“我已打扫三天了”,但是还没有打扫完,还要继续打扫,应该用现在完成进行时。现在完成进行时用于表示“从过去某一时刻开始的动作一直持续到现在,并且还要继续下去”。而现在完成时表示过去发生的动作对现在造成的影响好结果。因此,D正确。
考点: 考查动词时态的用法。
核心考点
试题【—Why is the house in a mess?—I         it for Christmas since three days ago.A.c】;主要考察你对一般现在时等知识点的理解。[详细]
举一反三
—When will you lend me this new magazine?
—The moment I         it.
A.readB.have readC.will have readD.will read

题型:不详难度:| 查看答案
When you are at home,give a call to let me know you            safely.
A.are arrivingB.have arrived
C.had arrivedD.will arrive

题型:不详难度:| 查看答案
Excuse me. I       I was blocking your way.
A.didn’t realizeB.don’t realize
C.haven’t realizedD.wasn’t realizing

题型:不详难度:| 查看答案
--- Is there anything wrong , Tom ? You look upset .
---Oh, nothing . In fact , I ______  the coming National College Entrance Examination
A.have just thought ofB.was just thinking of
C.will just be thinking ofD.would just think of

题型:不详难度:| 查看答案
If we ________ now to protect our mother river ---Li Jiang River , we ‘ll live to regret it.
A.haven’t actedB.won’t act
C.don’t actD.hadn’t acted

题型:不详难度:| 查看答案
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