英語中省略主語的用法
一、祈使句自然可省去主語，如：
Leave him in peace! 不要去打擾他!
Come at one o'clock sharp. 準一點鍾來。
Listen to me, children! 聽我講，孩子們!
Look both ways before you cross the road. 過馬路之前要曏兩邊看看。
二、除祈使句外，還有其他省去主語的情況，如：
Don't know. 我不知道。(省去主語I)
Beg your pardon. 請原諒。(省去主語I)
Had a good time, didn't you?玩得很好，不是嗎?(省去主語you)
Doesn't look too well. 他臉色不大好。(省去主語he或she)
Looks like rain. 像是要下雨了。(省去主語it)
三、Must be somebody waiting for you. 一定是有人在等你。
Appears to be a big crowd in the hall. 大厛裡似乎有一大群人。