问题

We are sure everything here____ by the time you come back from abroad in a few years

A:had changed
B:will have changed
C:had been changed
D:will have been changed

正确答案是：

同类题型

The examination will begin at 10:30. Those who come late ________ to the examination room.[ ]

The Ministry of Education is ______ that primary andmiddle school students perform one hour of physical exercise a day.

_______unemployment and crime are high, itcan be assumed that the latter is due to the former.

Autumn coming, down ________.

下列各句中，没有语病的一句是 (　　)