—Such a mistake could have been avoided. —Unfortunately, he _______ the mistake again and again.
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A
repeated
B
would repeat
C
had repeated
D
would have repeated
推荐题目
With the help of high technology, more and more substances _________ in the past years.
#101033
A
discovered
B
have discovered
C
had been discovered
D
have been discovered
Mr. Lee, who ________ as a carpenter for over 10 years, is now a very famous statesman in this country.
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A
has worked
B
had worked
C
worked
D
works
—Bob, you’re absent-minded!—Oh, I’m sorry I ______ attention to you, Miss Shute.
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A
haven’t paid
B
wasn’t paying
C
am not paying
D
won’t pay
How long have you ______ ?
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A
lost your job
B
been out of work
C
been lost your job
D
out of work