Question

Prices____ all the time and no one knows when they         stable.

A．are going up; become	B．have been going up; will become
C．have gone up; will become	D．have been gone up; become

 

Answer 1

【答案】

B

【解析】考察时态。根据all the time一直可知第一空应该使用现在完成进行时。第二空是宾语从句，根据句意可知是将来时。句意：物价一直都在上涨。没有人知道什么时候会稳定下来。故B正确。