—Show me your permit, please.—Oh, it's not in my pocket. It ________.
#62323
A
must have fallen out
B
might fall out
C
could fall out
D
should have fallen out
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Some aspects of a pilot's job be boring, and pilots often work at inconvenient hours．
#63217
A
can ; have to
B
may ; can
C
have to; may
D
ought to; must
—_____ 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
---Where is Tom? ---He hasn’t come to school today. I think he be ill.
#74537
A
has to
B
should
C
may
D
need
Li Lei knows two foreign languages. He can speak _______ English______ French.
#76947
A
either…or
B
neither…nor
C
both…and
D
so…that
According to our school rules, students ________ not carry mobile phones when taking a exam.
#62612
A
will
B
may
C
shall
D
need