(2013·北京东城二次联考)—________ you interrupt now？Can't you see I'm on the phone?—Sorry，sir，but it's urgent.
#62522
A
Can
B
Should
C
Must
D
Would
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—Dad, must I finish my homework today?—No, you ______. You may do it tomorrow.
#74354
A
needn’t
B
mustn’t
C
don’t
D
won’t
-I didn't go to the art show, because I lost my ticket．-You______have borrowed mine I didn't go to see it anyway
#63154
A
would
B
need
C
could
D
must
—Where did you get this book?—I picked it up from a second-hand bookshop if you ______ know.
#63082
A
must
B
will
C
can
D
shall