His parents are convinced ____ the fact the their son always focuses his mind ___ his study.A.of; on

题目简介

His parents are convinced ____ the fact the their son always focuses his mind ___ his study.A.of; on

题目详情

His parents are convinced ____ the fact the their son always focuses his mind ___ his study.
A.of; onB.of; atC.by; toD.on; at
题型:单选题难度:中档来源:不详

答案

A
本题考查介词。 be convinced of确信,focus one’s mind on集中某人的注意力,根据句意选A。

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