—Perhaps John's not in.—______.Look，the light's on.
#89430
A
Yes，he can be at home
B
No，he couldn't go out
C
Yes，he must be at home
D
No，he needn't go out
推荐题目
. I ____ to the top of the tree, but I fell off it and hurt my leg.
#88189
A
must have climbed
B
was able to climb
C
could have climbed
D
should have climbed
— I can’t find my dictionary anywhere.— You _____ have lost it while studying in the library.
#87711
A
can
B
may
C
would
D
should
—She looks very happy. She ______ have passed the exam.--I guess so. It’s not difficult after all.
#88109
A
should
B
could
C
must
D
might
—What do you think we can do for our aged parents?—You___do anything except to be with them and be yourself.
#89088
A
don’t have to
B
oughtn’t to
C
mustn’t
D
can’t