1、问句： Is this your English book？
肯答： Yes，it is.
否答： No，it isn`t.
2、 问句： Are these your English books？
肯答： Yes，they are.
否答： No，they aren’t.
3、 问句： Can you speak English?
肯答： Yes，I can.
否答： No，I can’t.
4、 问句： Do your parents like English？
肯答： Yes，they do.
否答： No，they don’t.
5、 问句： Can you speak English?
肯答： Certainly \ Of course.
否答： Sorry, I can’t.
6、问句：May I watch TV after supper?
答：Yes, you may. / No, you mustn't.
7、 问句：May I stop here?
答：No, you mustn't.
8、问句：Must I finish my homework before eight o'clock?
答：Yes, you mus.
9、问句：Must I attend the meeting?
答：No, you needn't(No, you don't have to). You can ask Tom to go instead.
10、问句：Need we stay behind after school?
答：Yes, you must.
11、问句：Need he go now?
答：No, he needn't.