问题
Sir, you _______ be sitting in this waiting room. It’s for women and children only. [ ]
A: oughtn't to
B: can't
C: won't
D: needn't
B: can't
C: won't
D: needn't
正确答案是：
同类题型
Each person’s fingerprint is unique, ________ it an ideal identification tool.[ ]
Hi, Tom．Any idea where Mary is? — She in the reading room．I saw her there just now．
Look! Can you see a boy ______ a kite over there—Yes, let’s go and see.
So that explains why you caught a cold. You _______out last night without a coat.