— Look at the boy playing basketball on the ground. Is it George?— It ________ be him. He told me he would play basketball after class, but he’s not sure.
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A
mustn’t
B
must
C
can’t
D
may
推荐题目
You ______ wear sports shoes when you climb a mountain.
#77969
A
can’t
B
shouldn’t
C
mustn’t
D
have to
(2013·高考辽宁卷)Harry is feeling uncomfortable.He ________too much at the party last night.
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A
could drink
B
should drink
C
would have drunk
D
must have drunk
— Li Fan won the first prize in the national physics competition. — I ________ he was the winner.
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A
shouldn’t have thought
B
must have thought
C
need have thought
D
could never have thought