【題目】Look！Half of the students ________ studying in the classroom right now.

A. is B. are C. was D. were

【答案】B

【解析】

句意：看！一半的學(xué)生現(xiàn)在在教室里學(xué)習(xí)。由look和right now可知時(shí)態(tài)為現(xiàn)在進(jìn)行時(shí)。排除C/D；“half of +名詞”結(jié)構(gòu)做主語(yǔ)，謂語(yǔ)動(dòng)詞的單復(fù)數(shù)，取決于后面名詞的單復(fù)數(shù)。因?yàn)?/span>Half of the students后面的名詞students是復(fù)數(shù)，因此謂語(yǔ)動(dòng)詞用are。故選B。

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