With the development of high technology, more and more new things ______ in the past years.
A.discoveredB.have discovered
C.had been discoveredD.have been discovered
D
    
試題分析:考查動(dòng)詞時(shí)態(tài)。固定短語(yǔ)in the past years“在過去的幾年里”是現(xiàn)在完成時(shí)的標(biāo)志,排除A、C選項(xiàng),而由語(yǔ)境可以判斷new things 和discover是被動(dòng)關(guān)系,應(yīng)該用被動(dòng)語(yǔ)態(tài),所以D選項(xiàng)正確。句意:隨著高科技的發(fā)展,在過去幾年里越來越多的新事物被發(fā)現(xiàn)了。
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