__________her mother started to go to the meditation class,

2023-08-04

A. It was at about this time that
B. That was about this time
C. It was at about this time when
D. It was about this time that

参考答案:A

考查强调句。句意为“大概是在这个时间,她母亲开始上禅修课了”。It is/was…that…是强调句的标志,去掉结构词后,句子依然意义完整。若不用介词at.后面则需用关系副词when引导.故选A。