have started smoking 为什么加ing

have started smoking 为什么加ing I gave up smoking last year but I have just started again?本人不懂洋文 谁懂说哈 不要乱翻译哦! Father started smoking many years ago的同义句 have him smoking什么意思 We have never started是什么意思 have you started school yet? 单项选择并解释： ——Do you still smoke heavy? -----No. In fact, it is two years since I___.A.have stoped smoking B.smoked C.began to smoke D.started to smoke smoking smoking it seems that he since he started smoking last year.(cough) 英语翻译The drop continues a general decrease in teenage smoking rates that started in 1996. i have stopped smoking since 2001.的同意句i have ( )( )smoking since 2001. 英语翻译1、Eperts have been warning for some time of the health risks caused by passive smoking.2、When we got to the cinema,the film hasn't started yet,so we_____A、needn't hurry B、didn't need hurry C、needn't to hurry D、needn't have hur I have not started the count yet.还是I have not started counting yet? Linda was to have started the experiment a month ago为什么要用“To have started ” 对()部分提问：Smoking makes me want to leave (because i have smoking) I gave () smoking last year but I have just started again.I'm going out now,but I'll be () in falf an hour.The concert was () and everybody left the hall.A new play is () at the Phoenix.I 've given all my old furniture.括号里应填up、off、over 请根据文章提供语境用恰当的引导词填空.Dear mom and dad, I am afraid I have some very bad news for you.My school master is very angry with me _____ I made a big mistake. The trouble started last night ______ I was smoking in b