Was it bill,who is one of your best friends,that played the piano for the new year concert?

分类: 作业答案 • 2022-02-25 23:35:12

问题描述：

Was it bill,who is one of your best friends,that played the piano for the new year concert?
第二个逗号后为什么不用which而用that?

答

原句为强调句型.

It was bill (who is one of your best friends) that played the piano for the new year concert.