改一般现在时怎么改Are the students playing in the playground?

改一般现在时怎么改Are the students playing in the playground? the students are giving a report改成一般现在时怎么改 They are playing football on the playground 改否定句 Miss Lin and her students are playing in the park.改同义句 They are piaying basketball in the playground.改一般疑问句 改病句How many student are there in the playground? The are in running the students playground . we are standing on the playground.怎么改一般疑问句? The children are flying kites in playground.怎么改否定句 The students are playing football in the playground.(改为否定句) The students are playing happily on the playground.改成感叹句 The students are playing happily on the playground.