判断下列句子是简单句、并列句还是复合句：

题目

判断下列句子是简单句、并列句还是复合句：
1、Neither has he changed his mind,nor will he do so.
2、There is a chair in this room,isn't there?
3、What he said at the meeting is very important,isn't it?
4、Both Tom and Jack enjoy country music.

答案

1,并列句 由并列连词neither.nor 连接
2.简单句
3.复合句 含主语从句
4.简单句