Question

【题目】 I ______ to reach the manager for the last two hours but the line is always busy.

A. tried B. have tried C. had tried D. have been trying

Answer 1

【答案】D

【解析】试题分析：句意：在过去的两个小时我一直在努力和经理联系上，但一直占线。have been trying是现在完成进行时，强调动作一直在进行。故选D。