高中英语主要句型56一、以形式主语it引导的句型。
句型1.
It (so) happened(chanced) that +clause. = sb. happened /chanced to do sth. =sb.did sth. by chance. 如:
It happened that he was out when I got there. 当我到那儿时,碰巧他不在。=He happened to be out when I got there.= It chanced that he was out when I got there= He was out by chance when I got there.