It's dark, Mum ___ be waiting for my return.
#89027
A
can
B
should
C
must
D
may
推荐题目
Which of the following sentences conveys a fact?  
#86769
A
Maryandhersonmustbehomebynow.
B
Carelessreadingmustgivepoorresults.
C
It’sgettinglate,andImustleavenow.
D
Hemustbeworkinglateattheoffice.
You ______ be hungry already — you had lunch only two hours ago!
#88943
A
wouldn’t
B
can’t
C
mustn’t
D
needn’t