题目内容
【题目】--- Do you learn math ___ asking the teacher ___ help?
---- Oh, yes. It helps a lot.
A. by; for B.for; by
C.by; to D.to; by
【答案】A
【解析】
试题分析:句意:-你通过请老师帮助学习数学?-哦,是的。它帮助很大。By通过,被; for为;to到。所以选A。ask sb for help 向某人求助 ,向某人寻求帮助
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