帮我把下面的句子变一般疑问和否定!一般疑问用YESNO回答,
问题描述：
帮我把下面的句子变一般疑问和否定!一般疑问用YESNO回答,
1、My mother is forty-five years old.
2 There is a cup of coffee on the tabie.
3 I am an English teacher.
4 They are in different ciasses.
5 Lucy has a birthday party today.
6 I do my homework every evening.
7 Jane and Lynn like singing and daneing.
8 LiMing studies English in Canada.
9 Thegirl often helps her mother with housework.
10 Some students Play on the computer once a week.
答
1.Is your mother 45 years old? My mother is not 45years old2.Is there a cup of coffee on the table? There is not a cup of coffee on the table3.Are you an english teacher?I am not an English teacher4.A...