—When I first got to Harvard, my awkward English brought me great trouble.——Oh, dear, it _______a struggle for you to keep up with other students.
#63055
A
might be
B
can be
C
could have been
D
must have been
推荐题目
According to the factory safety rules, all accidents _____ be reported to the safety officer.
#62239
A
may
B
can
C
would
D
shall
So many people violate traffic regulations that we ____ put too much emphasis on the importance of traffic safety.
#62634
A
must not
B
should not
C
need not
D
cannot
—Look at the picture on the wall. It ________be David’s.—Yes, his name is on the first page.
#76503
A
can
B
can’t
C
must
D
mustn’t
—How dangerous it was!—Yes, but for the passer-by’s quick action, the girl ________.
#63100
A
was drowned
B
could have been drowned
C
had drowned
D
should be drowned
Some aspects of a pilot’s job__________ be boring, and pilots often ________ work at inconvenient hours．
#63540
A
can; have to
B
may; can
C
have to; may
D
ought to; must