The accident took place____a cloudy morning.A.in B.at C.on
问题描述：
The accident took place____a cloudy morning.A.in B.at C.on
答
on
答
in
答
选择C.on
一般在早上中午晚上,用in
但是在具体的某一天的早上（前面有修饰的时候）,我们用on,固定用法