"what have happened there"he said,的间接引语

she is two hours late.what ( )to her?A should have happened B must have happened C may have happened D can have happened No matter what ( )happened to you.用have还是has what have happened therehe said,的间接引语 what has happened?I have said something unking to my friend.这句为什麽不用 what have happened --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 What can have happened to her29.She's already an hour late,What _____to her A can have happened B may happen C should have happened D may have happened 为什么选A,B＼D有什么不对吗 what's happened to them 's=has?为什么不是have 是them 为什么不是what've happened to them What had happened?What had happened?What had happened? What-------? I --------my key and can't open the door.A.happened;lostB.has happened;lostC.happens;have lostD.has happened;have lost选哪个?为什么? 是What happened 还是what’s happened what happened=what's happened吗? what happened to 和what happened --I haven't seen Mike for some time,what---to him?--He's got crazy and has ---hospitalA,should have happened,come inB,can have happened,ended inC,could have happened,come inD,must have happened,likely选哪个?为什么? -I can't walk any longer,David?-Why?____ A.What happened?B.What did you happen?C.What have you happen?D.What is happened to you? I have no idea what _____when I was asleep.A is happening B did happen C happened D was happened It was very noisy outside.I went out to see what ( ).A.Have happened B.Had happened what happened at last? what happened on