on having killedWhen he had killed the guard,he dragged him into the bushes.为什么可以写成On having killed the guard he dragged him into the bushes.为什么不写成Having killed the guard he dragged him into the bushes.

on having killedWhen he had killed the guard,he dragged him into the bushes.为什么可以写成On having killed the guard he dragged him into the bushes.为什么不写成Having killed the guard he dragged him into the bushes. having picnic on the beach you are having me on Are you ____ holiday now?(on,having) having having having i am having a surprise party for lana on Friday night中为什么是am having? Rely on the heart to say here location having you the peopleare having fun on the beach 同义句转换 My opinion on having lessons at weekends80字作文 They are having a soccer m______ on the playground. 请翻译Congratulations,Sally,on having gotten another year older. Students like having o_______ games on the playground. He congratulated me on having got engaged 是什么意思 Are you _____________ holiday now?(on have having) They ( ) any English classes on Monday.They ( ) a Chinese class now.A、are't having;are having B、don't having;have C、aren't having;have D、don't have;are having 选择 （ ）someone knocket____the door while I____ my breakfast A.on;had B.at;were harving C.on;amC.on;am having D.at;was having