否定句：
①These books are not new.
②Her sister is not a doctor.
③I don't like watching TV
④He doesn't plays basketball at school
⑤My brother doesn't do his homework at home
⑥Your father and mother don't go to walk every day .
一般疑问句
①Are these books new?回答 Yes,they are./No ,they aren't.
②Is her sister a doctor?回答Yes,she is./No,she isn't.
③Do you like watching TV?回答Yes,I do./No,I don't.
④Does he play basketball at school?回答 Yes,he does./No,he doesn't.
⑤Does your brother do his homework at home?回答Yes,he does./No,he doesn't.
⑥Do your father and mother go to walk every day 回答 Yes ,they do ./No,they don't.