We were having supper when the clock ________ twelve.(Unit10-6)

问题描述:

We were having supper when the clock ________ twelve.(Unit10-6)
A.struck?B.hit?C.beat?D.knocked
为什么选A不选D?其它选项用在这里是什么意思呢?

都是击、打、敲
A.钟敲
B.人打别的东西
C.心脏跳动;击败对手
D.敲门