She found a lot of were .
A. passers-by; grown-ups
B. passers-bys; growns-up
C. passers-bys; grown ups
D. passers-by;growns up
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(答案→)A. passers-by; grown-ups
B. passers-bys; growns-up
C. passers-bys; grown ups
D. passers-by;growns up
解析:考查合成词的单复数用法。在表示中心意思的词上变化。Passer-by过路人,复数为passers-by;grown-up成年人表示整体意思,复数grown-ups