题目：
Now in some schools it isn’t odd for students to go to school seven days a week. _____ would be strange.
A．To not do so
B．Not to do so
C．Don’t do so
D．Doing not so
答案：
答案：B
考查非谓语动词。A和D都是选项本身形式错误，因为非谓语动词的否定式是把not放在最前面；选项C是祈使句形式，空格后面已经有了would，如果选的话，会有两个谓语动词。故选B。
