—Bob, where is Linda?—She be in the library, but I am not sure.
#74179
A
must
B
may
C
need
D
has to
推荐题目
All of us must do_______ to help protect the environment，or we will have more hazy weather雾霾天气.
#74653
A
something useful
B
anything useful
C
useful something
D
useful nothing
—Did you ask Tom for help?—I ________. —I managed perfectly well on my own.
#62620
A
needn’t have
B
don’t need to
C
didn’t need to
D
needn’t
You _______be hungry already—you had lunch only two hours ago.
#63104
A
can”t
B
wouldn”t
C
mustn’t
D
needn”t
What's wrong with your car? - Well, as you know, cars usually_______ start in winter.
#75329
A
don't
B
shan't
C
can't
D
won't