It has been announced that passengers ____ remain in their seats until the dangerous subjects have been removed.
#90050
A
can
B
will
C
may
D
shall
推荐题目
What a pity! Considering his ability and experience,he___ better.
#87930
A
need have done
B
must have done
C
can have done
D
might have done
She is too thin. She _______ gain some weight but she ______ too little. 
#89217
A
would; ate
B
will; eat
C
would; eats
D
will; ate