Lucy's friends play volleyball (改否定句,说明原因）Teir father goes to beijing改否定句，说明原因
问题描述：
Lucy's friends play volleyball (改否定句,说明原因）
Teir father goes to beijing
改否定句，说明原因
答
Lucy's friends don't play volleyball.
friends 是复数，所以用do not.
答
应该改为Lucy's friends don't play volleyball.因为在该句中动词是play，而该词没有否定式，故只能用助动词do，加 not表否定。所以，原句就改为Lucy's friends don't play volleyball.谢谢。
答
Lucy's friends don't play volleyball.
Lucy的朋友们玩排球
...改为否定,则是不玩排球~所以否定动词 do sth变为do not do sth
Their father does not go to Beijing
第三人称单数,所以改为 does not
答
Lucy's friends don't play volleyball.
friends 是复数，所以用do not.