We ofter sit under the tree in the playgrund()lunchtime.a:in.b:on.c:at.d:to.

分类: 作业答案 • 2022-01-09 18:01:09

问题描述：

答

We ofter sit under the tree in the playgrund()lunchtime.a:in.b:on.c:at.d:to.
选C
【at lunchtime】在午餐时间
用介词at