单选题
We were excited to learn that the last month's sales______by 30%.
A、
had increased
B、
increase
C、
are increasing
D、
have increased
【正确答案】
A
【答案解析】
[解析] 该题主要考查动词的时态。主句为过去时,从句中谓语动词increase应发生在主句之前,故用过去完成时。 [译文] 我们很高兴地得知上个月的销售增长了30%。
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