-- Look at the boy running on the ground. Is it David?-- It _______ be him. I saw him go to the teacher’s office just now.
#77075
A
might
B
could
C
can’t
D
mustn’t
推荐题目
Teachers should ___them to continue studying when some students want to give it up.
#75047
A
encourage
B
keep
C
prevent
D
make
In our town, wood can ___________ a fire.
#62834
A
be used to make
B
be used to making
C
use to make
D
used to making
Tigers like to eat _____________, but koalas like to eat____________.
#77202
A
meat , leaf
B
meats , leaf
C
meat , leaves
D
meats, leaves
–Mom, must I stay there the whole day?--No, you______. You ____ come back after lunch, if you like.
#74096
A
mustn’t, can
B
needn’t, must
C
needn’t, may
D
mustn’t, may