By the time all the gifts were opened,the atmosphere_____ to calm down.

分类: 作业答案 • 2021-12-23 11:09:48

问题描述：

By the time all the gifts were opened,the atmosphere_____ to calm down.
A.began
B.begins
C.has gegun
D.is beginning
正确答案是：

答

正确答案是：A
分析题目:考察时态的前后一致
分析解释一下四个选项：都是开始的意思,只有A用的是一般过去时,与were相对应
全句的意思是：当所有的礼物都被打开后,气氛才开始平静下来.