He is () a meeting.A.have B.has C.at D.on 为什么选D不选C

He is at a meeting.同义句转换 Perhaps there is a meeting, He is going to a speech at the beginning of the meeting同义句转化He is going to a speech_____ _____ ____ -_____ the meeting he is （ ） a meeting A have B has C at Don _______ he will attend the meeting is not clear.A.Whether B.If C.That D./ Mr Black isn't here now .He is at a m in the next meeting room He________(make) a speech at the meeting tomorrow,is he可以用won't make吗 He suggested that we (should) have a meeting=He suggested that a meeting be held ( ) a meeting Meeting a UFO is an_____ [usual] experience There is a meeting 变将来时 There is a meeting 变将来时 The youth is a beautiful meeting是什么意思? there is a meeting today?的过去式 He will speak__.A.at meeting B.in the meeting C.on the meeting D.at the meeting my father is not -----home,he is ------a meeting.中横线上填什么,为什么那样填 Where is Mike?I'm afarid he has a f_______ .we'll have a meeting this evening He is () a meeting.A.have B.has C.at D.on 为什么选D不选C