All of the Plants now raised on farms have been developed from plants wild.A. once they g

问题补充：

All of the Plants now raised on farms have been developed from plants wild.

A. once they grow

B. they grew once

C. that once grew

D. once grew

答案：

A. once they grow

B. they grew once

(答案→)C. that once grew

D. once grew

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