I ___________ to phone her all day, but whenver I phone her, the line is engaged
题型：不详难度：来源：
I ___________ to phone her all day, but whenver I phone her, the line is engaged.| A．tried | B．had been trying | C．have tried | D．have been trying |
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答案
| D |
解析
试题分析：从the line is engaged可得知与现在有关，排除AB，再从时间状语all day可知动作从过去开始一直持续到现在还很有可能持续下去，故使用现在完成进行时。句意：我一整天都在打她的电话，但是无论我什么时候打，电话都占线。
点评：要善于确定句子时态，可以通过时间状语确定,还可以根据上下文来确定.但不能断章取义，要认真看清题意。 |
举一反三
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