I didn't know what color . Is it red?A.is the bag B. the bag is C.was the bag D.the bag was请选择并说明理由.

分类: 作业答案 • 2022-02-17 14:48:36

问题描述：

I didn't know what color . Is it red?
A.is the bag B. the bag is C.was the bag D.the bag was
请选择并说明理由.

答

D
因为know后面为一个宾语从句,所以要用倒装,而谓语动词的时态应该与主句的时态一致.