He ________ all his aims. But his efforts in the past few years have been praise-worthy.
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A
could have achieved
B
wouldn’t have achieved
C
must have achieved
D
may not have achieved
推荐题目
Most people advise that students’ heavy burden __________.
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A
reduce
B
be reduced
C
to be reduced
D
reduced
Let’s clean the classroom, _______? 
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A
won’t you
B
shall we
C
do we
D
will not you
You _____ an A on your composition, but there were some spelling mistakes.
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A
should receive
B
could have received
C
would receive
D
must have received