lz对句子成份没有理解。what do you play，实际是You (do) play what，也就是说，what作Play的宾语。而错句中显然Play的宾语是Football，那么就出现了成份赘余。可以去掉Football或将名词性的What换成副词，如When,where,why...这样句子成分才能完整。
what do you play ,vollay or tennis?你怎么玩，vollay还是网球？what do you play ,vollay or tennis?你怎么玩，vollay还是网球？
what do you 后面通常跟的是一般事态的动词 举例：what do you do?what do you play?而what are you 后面往往跟的是\\现在进行时态动词.举例：what are you doing?what are you playing?
选part,是角色的意思。另外，play a part是固定词组，表示 扮演……角色；起着……作用的意思。
说的是:那你玩什么？
Do you play football 你踢足球吗（精）（锐）
i play basketball every day.
你的句子是错误的。应该是 What play do you watch tonight?中文：你今晚看什么比赛
1. I play the violin.2. Yes, I do.3. Miss Gao is my English teacher.4. I like blue.答案不唯一
what sports do you play翻译是你做什么运动。他用摄像机移动拍摄，营造一种运动的效果。He panned the camera, giving a sense of motion. 一组肌肉带动下一组肌肉运动。One group of muscles sets the next group in motion 正是这场运动确立了这家报纸的声誉。It was this campaign that ...