I started to have a headache two days ago.-How long did you have it?A. two days B.three days

Linda was to have started the experiment a month ago为什么要用“To have started ” We're late I expect the film_____ by the time we get to the cinema.A:had already started B.have already ;C.will already have started D.have already been started. I was ______ work last week,but I changed my mind.a.to start b.to have started c.to be starting d.to have been starting --What were you doing when Tony phoned you?--I have just finished my workand ( )to take a show.A:had started B:started C:have started D:was starting为什么? I should have started skydiving a long time ago I Started A Joke I started to have a headache two days ago.-How long did you have it?A. two days B.three days I started to write a letter.同义句 I started to write a letter.同义句 2.I____work last week,but I changed my mind.A.were to start B.was to start C.was to have started D.had started 选D是因为虚拟语气吗? We are late.I expect the film _____by the time we get to the cinema.A:will already have startedB:will have already started i to play ittwoyearsagoandfell in love with it at once选哪个?（start ,was starting,have started,started 四个中 I started to miss you. We are late. I expect the film ___ by the time we get to the cinemaA) will already have started B) would already have started C) shall have already started D) has already been started I guess I should have caught on when she started going to the dentist four and five times a week翻译 I wish I ______ to study English years ago.A) started B) start C) should start D) had started 单项填空：I missed the bus and was late for school.-You_ have started earlier for school.A.ought to B.shall C.must D.might I have started to study English since two years ago 怎么改