9. Not until he found no one showed any intention to take a cent out of their pockets       . (vain)

直到發(fā)現(xiàn)沒有人打算掏出一分錢的時候，他才意識到自己的努力都是徒勞的。

9. did he realize his efforts were in vain考查in vain 和not... until結(jié)構(gòu)的倒裝用法。in vain徒勞，無效。當(dāng)notuntil位于句首時，句子要倒裝。其結(jié)構(gòu)為：Not until+從句/表時間的詞+助動詞+(主句) 主語+謂語。

題目來源：高考丟分題英語 > Unit 2 Cloning

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