求助几道小学英语题1.he is a in grade five 否定 疑问2.she is happy否定疑问3.I

1.he is in grade five
否定 He isn't in grade five
疑问 is he in grade five
2.she is happy
否定she isn't happy
疑问is she happy
3.I usually do my homework after supper
否定I don't do my homework after supper
疑问
4.he cleans his bedroom every day
否定he doesn'tclean his bedroom every day
疑问does he cleans his bedroom every day
5否定.bob didn't play computer game yesterday
疑问did.bob play computer game yesterday