问题

— Look!Somebody ________ the sofa.— Well, it wasn’t me. I didn’t do it. [ ]

A: is cleaning
B: was cleaning
C: has cleaned
D: had cleaned

正确答案是：

同类题型

’t know this years ago ,butrecent science ____that inharmonic marital life like quarrels or fights harms one’ heart.

Is Mary friend—No, isn’t.

lways runs faster than Peter, butthis time he ______him.

It’s impossible for us to work out the Math problem in just 10 minutes. It’s too difficult.—You’re right. We can’t be _______ careful while working on it.

Is the Changjiang River in the world— No, it isn’t.