On March 12, the students were planting trees the classroom. A. in the back of B. at the back of C. to the back of D. on the back of 【查看更多】

 

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29. On March 12, the students were planting trees ____ the classroom.

A. in the back of           B. at the back of           C. to the back of           D. on the back of

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On March 12, the students were planting trees ____ the classroom.

A. in the back of B. at the back of　 C. to the back of D. on the back of

 

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29. On March 12, the students were planting trees ____ the classroom.

A．in the back of

B．a(chǎn)t the back of

C．to the back of

D．on the back of

 

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