______more sunlight, these vegetable plants grow much better this year.

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问题 ______more sunlight, these vegetable plants grow much better this year.

选项 A、To receive
B、Having received
C、Receiving
D、Since receiving

答案B

解析用分词的完成形式，表示这个动作发生在主句的谓语动词之前，就是现在才能长得茂盛。这里不能用动词不定式，因为动词不定式放在句首，一般是做目的状语用的。连接词since可以做“既然”解释，但是该词没有这种省略句的用法。

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专业英语四级

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