问题
选择题
---Come on, boys! The bell is ringing, it’s time ______class.
---OK. Let’s______.
A. have, to go B. to have, go C. having, go
答案
答案：B
本题考查的是it's time to do sth，而后一空let sb do sth，表示让某人做某事，故选B
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