I happened ____ the street when I heard my name called.A.to crossB.having crossedC.to be crossingD.crossing为啥选C?

I happened ____(see) the accident when i was walking past the park. I happened ____(meeting) an old friend in the supermarket this morning. 14.I ____ along the street looking for a place o park when the accident ____ .A. went ; was happening B. went ; happened C. was going ; had happened D. was going ; happened答案：解析： When I hurried to the station,there happened ____ no bus at that time.选什么?WHY The story happened ____ the center of Shanghai.填介词 I saw the accident happened 改错 An important event that I remember well was __ ___________________.It happened in/on ____ _________ at /in __________________.When I heard the news of this event/ When this event happened,I was ____________.My friends were _________________.This eve It happened ____ (rain)when was at the station I happened ____ the street when I heard my name called.A.to crossB.having crossedC.to be crossingD.crossing为啥选C? The accident ____ on the road last night A has happened B was happened C happene DThe accident ____ on the road last nightA has happened B was happened C happened D has been happend 单项选择：I can't forget the time ____ the earthquake happened in Yushu.A when B which C that接上：D where Did you see the traffic accident yesterday?Yes ,I saw it ____ when I ____ past the school gate.A.happen;walk B.happen;was walking C.happened;walking D.happening;have walked Did you see the traffic accident yesterday?Yes ,I saw it ____ when I ____ past the school gate.A.happen;walkB.happen;was walkingC.happened;walking D.happening;have walked为什么不选D see sb doing sth 现在完成时还是过去完成时?I happened to meet him in the street yesterday.We ____ each other for a long time.(haven't seen or hadn't seen) （2）13.I heard a dog _____ in the next house.Did you know what ____?A.barking；happened B.barking;happen C.bank;happened D.to bark;happened14.I ____ up at 5 a.m this morning,so I an very sleepy now.--Take good care of ____.A.wake;you B.woke;y when I went to tell Mary the news that she had passed the exam,____ happened that she was not at howhen I went to tell Mary the news that she had passed the exam,____ happened that she was not at homeAit B what Cwhich Das I remember the whole thing as if it happened yesterday.用had happened行不行? 翻译:I happened to be at the station ,when it happened