他们以什么为食?What do they ____ ____?

题目

他们以什么为食?What do they ____ ____?
1.他们以什么为食?
What do they ____ ____?
2.会议开始5分钟了.
the meeting has ____ ____for 5minutes.
3.they came to China three years ago.（改成同义句）
(1)they ____ ____ ____China for three years.
(2)____ three years ____they ____to China.
(3)three years ____ ____since they came to China.

答案

1.他们以什么为食?What do they __feed__ _on___?2.会议开始5分钟了.the meeting has __been__ __on__for 5minutes.3.they came to China three years ago.（改成同义句）(1)they _have___ __been__ __in__China for...