（）13.Noteacherandnostudent．A.areadmittedB.isadmittedC.areadmittingD.isadmittingD.were（）15.Whenandwheretobuildthenewfactoryyet.A.isnotdecidedB.arenotdecidedC.hasnotdecidedD.havenotdecided（）16.

Question

（ ）13.No teacher and no student ______．
A.are admitted B.is admitted
C.are admitting D.is admitting
D.were
（ ）15.When and where to build the new factory _____ yet.
A.is not decided B.are not decided
C.has not decided D.have not decided
（ ） 16.The writer and singer ______ here.
A.is B.are C.were D.do
（ ） 23._____ of my brothers are reporters.Covering events,meetings,or sports meetings ______ their duty.
A.Each,are B.Both,is
C.Neither,are D.None,is
BAAB

Answer 1

这些都是主谓一致
1.NO修饰的词用单数
2.When and where 这种情况大多用单数 选C好象好点有yet一般用完成时态
3.The writer and singer 指的是一个人既是作家又是歌手用单数
A writer and a singer 则用复数
4.Each None修饰用单数 A D错
Neither多与nor连用吧
events,meetings,or sports meetings 是选择用单数