问题

When you read the book, you’d better make a mark ____ you have any questions.

A:at which
B:at where
C:the place
D:where

正确答案是：

同类题型

He wa bikeon the drive-way.

You’d better go there by train.The train ticket is________the airplane ticket.

The university attaches great importance ________ social science.[ ]

I wonder how much ________.

What youwhen the earthquake happened