we can see the sun in ___daytime ,but we can't see it at_____night.
问题描述:
we can see the sun in ___daytime ,but we can't see it at_____night.
A a,the B the,x C a ,x
答
Bthe,x
in the daytime 在白天
at night 在晚上
这两个都是固定短语