He ___________ unwisely, but he was at least trying to do something helpful.
#63139
A
may have acted
B
must have acted
C
should have acted
D
would act
推荐题目
—_____ you please play tennis with me? —Sorry, I _____.
#74769
A
Could; can’t
B
Could; couldn’t
C
Can; don’t
D
Can; couldn’t
— _____ you find _______ ways to work out this problem, Jim? — Yes, I ______.
#76596
A
Could; another; could
B
Can; another; can
C
Could; other; can
D
Can; other; could
—I called you at 9 last night，but no one answered.—Sorry，I ________ sleeping.I went to bed very early.
#62284
A
need have been
B
would have been
C
must have been
D
should have been