问题

Danielis the only one of the students in the class that never_____a mistake even whenit is pointed out to him

A:had worked
B:am working
C:worked
D:have beenworking

正确答案是：

同类题型

Excuse me, but could you tell me how to get to the post office?— Keep ____ straight for two blocks. The post office is right on your left. [ ]

He took up my cellphone and made a long distance call as if the phone _____ him.

下面划线的成语运用恰当的一项是（）

He has already gone to England.—When________ he________ there

Mr Smith was________to be a doctor but he became a teacher when he grew up. [ ]