单选题
It is widely understood that advertising ______ not only to promote sales but also to upgrade a company's image.
(A) helps
(B) to help
(C) helping(g) help
A
B
C
D
【正确答案】
A
【答案解析】
[理由] 空格前有动名词advertising(广告),是that所引导的名词从句中的主语。由于动名词视为不可数名词,故空格内应置入现在式单数动词。
选项中仅(A)及(D)分别为现在式单数动词及现在式复数动词。根据上述,(A)应为正选。
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