摘要: -Look! The tree is growing well. When ? -Three years ago. A. was it planted B. did it plant C. will it be planted D. is it planted
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—Look! The tree is growing well. When _____?
—Three years ago.
—Three years ago.
[ ]
A. was it planted
B. did it plant
C. will it be planted
D. is it planted
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B. did it plant
C. will it be planted
D. is it planted