【題目】My father was so glad to meet his old friend again.You see, they________with each other for nearly 30 years.
A.lost contact
B.had lost contact
C.had been out of contact
D.has been out of contact

【答案】C
【解析】根據(jù)句中出現(xiàn)的時間狀語for nearly 30years可知，要用完成時。又因失去聯(lián)系這一動作延續(xù)到他們這次見面之前，所以要用過去完成時。由于lose contact不能延續(xù)，故C項正確。

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