it so happened that only four so怎么能修饰happened?

it so happened that only four so怎么能修饰happened? it's so happened that这个句式什么意思 It (so) happened that.什么时候加so?It (so) happened that.这个句型什么时候加so,什么时候不加so?另外：There happened to be nobody in the house on fire.中为什么开头用There 而不是It? it so happened that i met her while i was having dinner at the restaurant=i happened. 这题为何选It so happen_________that a policeman was passing by when the accident happened.A It so happened B Happened it so C So it happened D So happened it在这里为何不选 D,不是说so…that句型至于句首要倒装么? It's so s___ that nobody answers the phone.What's happened 1.It is unusual that he _______ to school so early.A.goes B.could go C.go D.will go 2.________ I was ree that evening.A.It happened to B.It happened that C.That happened D.It is happened that 3.It is suggested that the experiment________ under low te It so happened that the tickets were sold out.这句话怎么理解.那个it好奇怪 It so happened that a policeman was at the scene of the accident.复合句变简单句 It happened on that p____ day. 翻译 that's exactly how it happened it happened that cows s___in the garden ___that I was not in London at that timeA.I so happenedB.It so happenedC.I was happenedD.It was happened要解析 __ I was free that evening.A.It happened B.It happened thatC.That happened D.It is happened that陈述理由, 高中英语问题 请告诉我原因 38.14____that he was going to the supermarket,so i asked him to send a letter for mea.that happenedb.it so happedc.that was happenedd.it was happened A war is so cruel that it always causes great losses __ has happened in IrapA.whatB.whichC.asD.one 详解翻译 Tsunami is so terrible that it always causes great losses ____has happened in some countries.A what B chich C as D must Dinosaurs often fought each other.We know that because____.A.their footprints tell us so B.it happened manny years ago