来自蔡玉华的问题
(C)7.---Howmanypeoplewerethereatthemeeting?----_______.A.NobodyB.NooneC.NoneD.Nothing(A)20.Thedoctorworkedfor___aftertwelveo’clock.A.twomorehoursB.twoanotherhourC.moretwohoursD.anothertwohour(C)26.____John____Jack
(C)7.---Howmanypeoplewerethereatthemeeting?----_______.
A.NobodyB.NooneC.NoneD.Nothing
(A)20.Thedoctorworkedfor___aftertwelveo’clock.
A.twomorehoursB.twoanotherhourC.moretwohoursD.anothertwohour
(C)26.____John____Jackmaygowithyoubecauseoneofthemmuststayathome.
A.Neither；norB.Both；and.C.Either；or.D.Notonly；butalso
括号中的是参考答案,请一个一个地详细说明
(C)7.---Howmanypeoplewerethereatthemeeting?----_______.
A.NobodyB.NooneC.NoneD.Nothing
为什么不选A，B
