问题
选择题
—He must be in the reading-room now. We will find him there.
---No, he _____.Tom said he was ill at home .
A.must not
B.can’t
C.may not
D.should not
答案
B
四个选项分别表示不准、不能、不可以和不应该,根据题意选B,他现在肯定在教室读书。我们会在那儿找到他。——不,他不可能。汤姆说他在家养病。