【It形式主语引导的句子与其他句型转换.1.IttakeTomfouryearstobecomeagooddriver.Tom()becomingagooddriver.2.Hespent2hoursindoinghishomeworkyesterday.Ittookhimtwohours()hishomeworkyesterday.3.Itisahappything】

　　It形式主语引导的句子与其他句型转换.

　　1.IttakeTomfouryearstobecomeagooddriver.

　　Tom()becomingagooddriver.

　　2.Hespent2hoursindoinghishomeworkyesterday.

　　Ittookhimtwohours()hishomeworkyesterday.

　　3.Itisahappythingtopasstheexamination.

　　To()isahappything.

　　4.Torideintheparkissaferthaninthebusystreet.

　　Itissafer()thaninthebusystreet.

　　5.BuyingmyfatheragiftonFather’sDayismygreatpleasure.

　　Itis()myfatheragiftonFather’sDay

　　6.LearningEnglishwellisveryimportant.

　　Itisveryimportant()Englishwell.

　　7.Runningoniceisverydangerous.

　　Itisverydangerous().

　　8.Tellingmotherthenewswasquitenecessary.

　　Itwasquitenecessary()motherthenews.

　　9.Readingthebookisreallyinteresting.

　　Itisreallyinteresting()thebook.

　　10.Wntingwellisalwaysadifficulttask.

　　Itisalawaysadifficulttask().

　　11.Betty’sgreatestfunwaspilotingajetplan.

　　ItwasBetty’sgreatestfun()ajetplane