Question

We often go swimming( )Saturday evening. A.in B.at c.on 求答案

Answer 1

c.on
①on表示在具体某一天及具体某一天的上午、下午和晚上。

例:on the morning of July 2, on Sunday afternoon, on a cold winter evening

② 当early，late用于句首修饰介词短语时，尽管表示具体某一天的上午、下午、晚上，都要用in，泛指一般的上、下午，晚上也用in 。

例:Early in the morning of National Day，I got up to catch the first bus to the zoo．

③当 morning.afternoon.evening有前位定语或后置定语限定时.就不用in而用on.

例:on a hot (summer) noon,on Monday morning,on the morning of March