Now computers _________ all over the world .
A．is usedB．a(chǎn)re usingC． are usedD．have use
C

試題分析：根據(jù)題干，本句的意思是：現(xiàn)在電腦在全世界被應(yīng)用。電腦應(yīng)該是被應(yīng)用，故用被動(dòng)語(yǔ)態(tài)。而被動(dòng)語(yǔ)態(tài)的結(jié)構(gòu)是be+過(guò)去分詞。排除BD。Computers是復(fù)數(shù)，故用are。所以本題選C。
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