问题
No one answered my phone, so the Whites ______ be at home. [ ]
A: shouldn't
B: couldn't
C: mustn't
D: needn't
B: couldn't
C: mustn't
D: needn't
正确答案是：
同类题型
1—Don’t drive so fast,Tom. You______ get a ticket for speeding .—OK, I will slow down ,Mum .
— I _____ two tickets for us. — Thank God! Or we would miss this wonderful concert. [ ]
Monday will be_________. ________bad weather it is!
Now that she has apologized for her rude behavior，I am ________.[ ]