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大家好,我刚开始准备GMAT数天,在做题中经常碰到Progressive与动词不定式做主语,分不清该如何使用。
经过查询了一定的资料以后逐步分清了COMMA+VING 做MODIFIER的用法,但是在做OG15 VERBAL SC #27题时还是有所疑惑。
题目为:
Obtaining an investment-grade rating will keep the county's future borrowing costs low, protect its already-tattered image, and increase its ability to buy bond insurance.
A) Obtaining an ivestment-grade rating will keep the county's future borrowing costs low, protect.
B) To obain an investment-grade rating will keep the county's future borrowing costs low,and protect.
这里我明白应该选择A,因为B从逻辑上表示目的,说不通,并且后面不应该用and联。
但是从这题里面我不太搞得清,什么时候用v-ing 或者 动词原形 或者不定式在句首。
谢谢大家解答疑惑。
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