—Look! Somebody the sofa.—Well, it wasn’t me. I didn’t do it.
#101195
A
is cleaning
B
has cleaned
C
was cleaning
D
had cleaned
推荐题目
After class, Mr. Zhang’s extra instructions to the class helped _____ the assignment to his students.
#101456
A
classify
B
clarify
C
cater
D
compensate
She _______ to go traveling this summer, but some extra work took up all her time.
#103183
A
had been planned
B
has planned
C
was planned
D
had planned
—Remember the first time we met?—Sure．You__________ the novel Pride and Prejudice in the library．
#101268
A
had borrowed
B
have borrowed
C
were borrowing
D
borrowed
----How did you like Nick’s performance last night? ----To be honest, his singing didn’t _______to me much.
#100730
A
appeal
B
belong
C
refer
D
occur
With the help of high technology, many new substances（物质）______in the past years.
#102927
A
discovered
B
have discovered
C
had been discovered
D
have been discovered