问题

he development of science and technology, the prices of TV sets have ________.

A:gone down
B:went down
C:brought down
D:been gone down

正确答案是：

同类题型

I shall turn ____ our teachers when I’m in trouble.

Mom added ___ but the soup wasn’t _____

It is such a modern machine ______ few of the workers know how to operate.

Twenty miles a long way to cover.　　

ather has been away for more than oneyear, John can still keep doing what he needs to