【題目】We should often keep _____ touch with each other, because we are good friends.

A.on B.to C.in D.up

【答案】C

【解析】

試題分析：句意：我們應(yīng)該經(jīng)常與彼此保持聯(lián)系，因?yàn)槲覀兪呛门笥�。keep in touch with為固定短語，表示與……聯(lián)系，其它介詞均不合適。故選C。

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