想必現(xiàn)在有很多小伙伴對(duì)于-How did Tom hurt his leg yesterday -He was walking home ________ a bike hit him．（　　）A.whileB. whenC. beforeD. during","title_text":"-How did Tom hurt his leg yesterday -He was walking home ________ a bike hit him．（　?。〢.whileB. whenC. beforeD. during方面的知識(shí)都比較想要了解，那么今天小好小編就為大家收集了一些關(guān)于-How did Tom hurt his leg yesterday -He was walking home ________ a bike hit him．（　?。〢.whileB. whenC. beforeD. during","title_text":"-How did Tom hurt his leg yesterday -He was walking home ________ a bike hit him．（　?。〢.whileB. whenC. beforeD. during方面的知識(shí)分享給大家，希望大家會(huì)喜歡哦。

AB表示當(dāng)……時(shí)候，都可引導(dǎo)時(shí)間狀語，其區(qū)別在于while其謂語動(dòng)詞通常是持續(xù)性動(dòng)詞。

when即可是持續(xù)性動(dòng)詞也可是短暫性動(dòng)詞．C表示在……之前．D表示在……期間．根據(jù)題干可知當(dāng)湯姆正在回家的時(shí)候，一輛自行車撞了他，又因從句中hit是短暫性動(dòng)詞。

則應(yīng)用連詞when．故選：B．。

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