The biggest problem for most plants,which_______just get up and run away when threatened,is that animals like to eat them.
#89083
A
shan’t
B
can’t
C
needn’t
D
mustn’t
推荐题目
Look! Tom is too sleepy to work.He _______ up watching TV.
#87635
A
mustn’t have stayed
B
shouldn’t have stayed
C
mustn’t stay
D
ought not to say.
He_______have been here two hours ago, but he hasn’t_______by now.
#88191
A
might; turned to
B
should; turned up
C
could; turned in
D
must; turned on