The reason ____ he is late is ____ there was a breakdown on the railway.A.why; why B.why; thatC.because; that D.that; because

问题描述:

The reason ____ he is late is ____ there was a
breakdown on the railway.
A.why; why B.why; that
C.because; that D.that; because

b

前面是修饰reason的,that后面是同谓语从句