mr. White __ at 8:30 for the meeting,but he didn't show up.A:should have arrived B:should arrive 为什么只能选A 不能选B?两者有什么区别?大家能不能回答我为什么should arrive 为什么不可以？

mr. White __ at 8:30 for the meeting,but he didn't show up.A:should have arrived B:should arrive 为什么只能选A 不能选B?两者有什么区别?大家能不能回答我为什么should arrive 为什么不可以？ Mr White will come back __ ___ ___ __ 怀特先生会尽快回来的 珍妮被一所以校录取了的英语怎么说 jenny __ __ __ a place at an art school我们每天向怀特先生学习英语we __ __ __ Mr.White every dayli ming wrote down every day he said.改为同义句li ming ___ ___ every day he said. .Mr White ____ at 8:30 for the meeting,but he didn't show up.A.should ha.Mr White ____ at 8:30 for the meeting,but he didn’t show up.A.should have arrived B.should arrive C.should have had arrived D.should be arriving jiamin () f() his homework last night .mr white w() o() the phone at 8:00 late night . Mr.White comes back home at ______from the pMr. White comes back home at ______from the park every day. Mr.White got to the bank at once(改为同义句） Mr.White___　____the bank at once 同义句转换!Mr.white is not free now mr.white is___ now. i'd like to speak to sum对 speak to sum提问同义句转换!Mr.white is not free now mr.white is___ now. i'd like to speak to sum对 speak to sum提问 __ __ YOU LIKE TO __? Mr．White _________ at 8∶30 for the meeting,but he didn’t show up．A.should have arrived B.should arrive C.should have had arrived D.should be arriving Mr. White _____ at 8:30 for the meeting, but he didn’t turn up. A. should have arrived B. should arriveC. should have had arrived D. should be arriving when () Mr White __(leave) home?sorry I don't know I __(not notice) him leavingmother is going __(swim) this afternoon Mr White works in an office.He liked reading in bed when he was at school. Mr White family are at home .They are doing thesr own things.从中找到错误 Mr and mrs white are w at a big hospitalw 后面有一个空 Mr White,night,the school,at,six,last,left(.)连词成句 At Mr White's great sale,they're only fifteen dollars.是什么意思 Mr White and Miss Black gets off at the post office.改错,写出正确句子 Use the information below to fill out the Memorandum form.Situation OneMary is a secretary of Mr.White's Company.A customer,Mr Brown,called Mr.White at 4:00PM,but Mr.White wasn't in.Then Mr.Brown asked Mary to tell Mr.White that he could get his moto