The patient smiled when he heard the sprightly music______the radio.A、onB、byC、

游客2023-11-16  20

问题 The patient smiled when he heard the sprightly music______the radio.

选项 A、on
B、by
C、with
D、in

答案 A

解析 介词用法题。通过广播、电视、电话等渠道,通常用介词on,因此A符合题意。
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