题目
The Greens have stayed in China for three years.（改同义句）
1.The Greens （_____) (_____) China three years ago.
2.(______) (______) three years (______) the Greens came to China.
3.Three years (______) (______) since the Greens came to China.
1.The Greens （_____) (_____) China three years ago.
2.(______) (______) three years (______) the Greens came to China.
3.Three years (______) (______) since the Greens came to China.
提问时间：2021-02-14
答案
has been
it was since
has gone
it was since
has gone
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