Who happened to be the waitress?一直只知道What happened to sb.却不知道有Who happened to be sb.请问一下这两者有什么区别和联系吗?感激不尽!

The mother didn't know who ___ for the broken glass as it happened while she是 to blame,还是 to be blamed 英语翻译who happened to be at the private after party in a rented house Who happened to be the waitress?一直只知道What happened to sb.却不知道有Who happened to be sb.请问一下这两者有什么区别和联系吗?感激不尽! it was a soldier who happened to be there___saved the girl from the danger.应该填that,为什么 The one who won't be taken cannot learn to be exposed to和be exposed by意思区分?翻译句子This corrupt official was exposed by a worker who happened to see him on line at a meeting smoking that he couldn't afford . Doesn't this speak for the usefulness of modern technology? the old man happened to be on The mother didn't know who to blame for the broken glass as it happened while she was out.为什么用who 而不用whom啊? the accident ----to the man who --to be a foreigner ,so it was hard to deal witha happenened ,occured b occured,happened There ( )nobody in the room.were just happened being were happened happened to be. Peter was happened to be at home that day.为什么是was happened而不是happened 1.That girl ______ be Kate,she’ gone abroad.A.must B.may C.can’t be D.mustn’t2..I don’t know what his feet?Are his feet A.was happened to ; Itchy B .happened to ; ItchyC.was happened to ; Itch D.happened to ; Itch29.__________it was ________s Translate:It s the one who won t be taken Who cannot seem to give It happened to be 和There happened to be有什么区别? he ____ by his sister at that moment.A.happened to see B.was happened to see C.was happened to be seen D.happened to be seen --What _ to them?--they appeared__in the accident.A.has happened to,be injured B.happened ,to have been injuredC.has happened to ,be injured D.happened ,injured She couldn't leave earlier,because there happened ----a English testA.to be B.to have C.to take D.to hold要理由 The accident ____to the man who ____to be a foreigner,so it was hard to deal with.A.occurred;happenedB.happened;occurred