4．B．each作主语时，谓语动词总是用单数形式，另外，each和every修饰单数，可数名词作主语，谓语动词也用单数形式。

3．A．当表示时间，货币单位，长度距离等名词的复数形式作主语时，可将其看成一个整体，谓语动词用单数形式

2．B．同上。

1．A．neither…nor…连接两个并列主语时，应根据“就近一致”的原则，使谓语动词的数与nor后面的词语相一致。

23．The writer and teacher ____ coming now.

　A．is

　B．are

　C．has

　D．have　

参考答案

22．I think maths ____ very interesting.

　A．are

　B．is

　C．sound

　D．seem

21．Neither my father nor I ____ there just now.

　A．were

　B．is

　C．are

　D．was

20．Ten minutes ____ enough for me.

　A．is

　B．are

　C．am

　D．be

19．The mother with two children often ____ to the town.

　A．go

　B．goes

　C．are going

　D．is going

18．None of that money on the table ____ mine.

　A．is

　B．are

　C．been

　D．were