请问：the meeting has been on for over ten mimutes.中为什么加ON?

Neither the teacher nor her students____to attend the meeting by the headmaster.A has been asked B has asked C have asked D have been asked请问选什么,为什么, 请问：the meeting has been on for over ten mimutes.中为什么加ON? how long has the meeting()?AbegunBstartedCoverDlasted Do you remember what he ___ at the meeting yesterday?A .has said B .said Everyone except Tom and John -----there since the meeting began A.has been B.has gone为什么选A? The meeting ___when I got there.A has begun B has been on C had begun D had been on everyone has got ready the sports meeting.everyone has got ready _______ the sports meeting. the meeting for this afternoonI called to say that the meeting ____ this afternoon has been canceled .A for B on C in D of 为什么选 A when and where to hold the sports meeting haue not been decided yet 请问为什么have 要改为has Every student and every teacher _____.A.are going to attend the meeting B.have attended the meetingC.has attended the meeting D.is attended the meeting分析下 He is one of the students who（ ）invited to the meeting.A have been B Has beenC.Had been The meeting ___by the time I got there yesterdayA was on B has been on C had begun D hasbegun 6.The meeting _______ for a week now. A. has finished B. has ended C. has been over 选哪一个啊? How long ____ the meeting ____?For about ten minutes.A.did; begin B.has; begun C.has; been on D.has; been The sports meeting has been_____because of the rain. 请问:make the meeting是什么意思,谢谢. The meeting ______by the time I got there yesterday. A. was on B. has been on C. had begun D. has begun 详细解析,谢谢 the chairman has informed us that he_a few minuteslater after the meeting beginsA has arrived B should arrived C could arrived D may arrived 求详解