肯定句变否定句练习题 am a student. is here. are going to go fishing this week. are working hard. was a teacher. were very happy. can dance very well. will come to see you at the school gate. will clean the classroom tomorrow. do sports every day. often have breakfast at 7 . do morning exercises on the playground. gets up at six. has something to tell his teacher. mother does some washing every morning. likes singing and dancing. visited the old man yesterday. had a good time yesterday morning. did his best to finish his work. read ten books last night. put his watch on the desk. has finished his homework. have learned English for ten years. has been in Beijing since 2000. has already finished his high school.’d better get up early. had better give up smoking. are some apples on the tree. had finished her homework yesterday. the window.
