题目内容

A police officer was killed last night in a road ____________.

A. incident
B. happening
C. accident
D. event

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It won’t make much ____________whether you leave today or tomorrow.

A. different
B. differences
C. difference
D. differently

Both the books that we used last year are ____________ .

A. out of date
B. out of order
C. out of control
D. out of practice

Let’s start early in the morning, ?

A. shall we
B. do we
C. don’t you
D. don’t we

Had it not been for your timely help , I_______________ .

A. would fail
B. must fail
C. should fail
D. would have failed

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