①We have been learning English for three years.(改为同义句）
We have been learning English___ ____ ____ ____.
②I started playing tennis when was seven years old.(改为同义句）
I started playing tennis ____ ____ ____ ____ seven.
人气：140 ℃ 时间：2019-08-20 22:05:06
解答
1 since three years ago
2 at the age of
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