题目内容

About _______of the engineers in my company seem to be in their _________．
A．second-nines; fourtiesB．two-ninths; forties
C．second-ninths; fortiethD．two-nineths; fourtieth
B

试题分析：句意：我公司的大约九分之二的工程师好像都在四十多岁。分数的表达法是：分子用基数词，分母用序数词，分子超过1，序数词要加s。表示在大约几十岁，要将后缀ty变成ties 。故选B
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