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        1. ---Wow! These inventions are amazing.
          —They were all invented _______years ago.
          A.hundredB.hundredsC.hundred of D.hundreds of
          D

          試題分析:英語(yǔ)中數(shù)詞表示概數(shù)時(shí),后面加s,和介詞of搭配使用。用原形時(shí)表示具體數(shù)字和數(shù)詞搭配使用。句意:喔,這些發(fā)明太神奇了。——他們是多年以前發(fā)明的。結(jié)合語(yǔ)境可知下文表示概數(shù),故選D。
          點(diǎn)評(píng):英語(yǔ)中關(guān)于hundred、thousand和million三個(gè)數(shù)詞的用法只需要記住一個(gè)原則就行。即;前有數(shù)詞則不加s,加s必加of。
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