(2013·保定唐县一中高三一模)—Is it good to look up every new word when I e across it in reading?
—No, you ， because you are likely to guess the meaning from the context.
A. don't have to
B. shouldn't
C. can't A
D. mustn't
网友回答
A. don't have to
B. shouldn't
C. can't A
D. mustn't
解析：选A 句意：“当我阅读时遇到生词是不是每个都要查词典？”“不，你不必，因为你可以根据上下文猜测单词的意思。”don't have to表示“没有必要做”，符合语境。