We         arrive at six. But I’m sorry we are late. 
#63290
A
should
B
were supposed to
C
must
D
ought to
推荐题目
Today’s work ____ today. Never leave it till tomorrow.
#78180
A
must do
B
must be done.
C
may be done
D
may do
—________I do the laundry first, Mum?—No, you ________. You can do your homework first.
#75490
A
Must; mustn’t
B
Can; mustn’t
C
Must; needn’t
D
May; needn’t