一、将下列句子变为否定句，每空一词。
This is a desk.
This ________ a desk.
Grandpa tells stories to us every evening.
Grandpa ________ ________ stories to us every evening. He can draw pictures.
He _______ draw pictures. He has a nice watch.
He _______ _______ a nice watch. They do a lot of homework at school.
They ________ ________ a lot of homework at school. You must play football here.
You ________ play football here. They are having an English class.
They _________ _________ an English class. Peter goes to the zoo once a year.
Peter _________ _________ to the zoo once a year.
二、下面各句四处划线部分有一处是错误的，请指出并改正。
He doesnt the homework every day. ( ) A B C D
He doesnt have some rice for supper. ( ) A B C D
3. This coat are red. That coat is blue. ( ) A B C D
