【題目】Up to now, large quantities of food __________ to Africa to save the starving people.

A. has been sent B. have been sent

C. are sent D. is sent

【答案】B

【解析】句意：迄今為止,大量的食物已被送往非洲，去拯救那些快要餓死的人們。句子的主語為 food,由large quantities of 修飾，謂語動詞用復(fù)數(shù)形式；且 send與food之間為動賓關(guān)系；Up to now迄今為止，用完成時。

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