问题
About _______of the engineers in my company seem to be in their _________．
A:second-nines; fourties
B:two-ninths; forties
C:second-ninths; fortieth
D:two-nineths; fourtieth
B:two-ninths; forties
C:second-ninths; fortieth
D:two-nineths; fourtieth
正确答案是：
同类题型
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