问题

With the 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

Can you tell me what to _________

If you _______ , I will _______ myself.

_________ do you shop —Once a month.

, his mother has to take care of him at home.

Must I return the book this week— No， you ______ . You can keep it for 20 days.