The plane______we flew to Canada is very comfortable.A.in thatB.in whichC.whatD./

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The plane______we flew to Canada is very comfortable.

A.in that

B.in which

C.what

D./

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。