____ students often ___races on the playground(have)

____ students often ___races on the playground(have) ____ students often ___races on the playground(have) 六下的同步的2 How ____(喧闹)the students are playing on the playground! Look!A number of students ____(be) on the playground. I often see him ____ basketball on the playground. Some times they have ____(meeting )on the playground 找错Some students are often running on the playground every mo The teacher saw the students ____(play) on the playground at There are students on the playground.改错 有这么一道题很不懂!There are many students ____ on the playground.应该填 there‘re many students on the playground改为同义句 there're ____ —A number of students ____ on the playground.