英语中,是in weekends 还是in the weekends ,急!

英语中,是in weekends 还是in the weekends ,急! 英语中是in the morning on weekends 还是on the morning on the weekends? 是in weekends 还是on weekends? 是in the weekends还是on the weekends我不确定,但是要写作文.麻烦帮帮忙. 是“at the weekends还是“at weekends? 在周末英语怎么说是on weekends还是at weekends.在工作日是on weekdays吗? on weekends 中 weekends 是指几天? 在周末他想去看电影用英语怎么说 (不是过去式)在周末是on weekends还是on the weekends还是at weekends 英语常识(在weekends前面应该加in还是on?)帮帮忙 是spend the weekends 还是spend weekends急~! i visit my parents on alternating weekends.意思是每周都去看,还是两周看一次, I can only play on weekends还是I can play only on weekends 后天期末on weekdays 还是in weekdays?in the weekends 这个英语句型对吗?I usually gets up at nine o'clock in the morning on weekends. 英语中目的状语和结果状语怎么分? ﹏﹏the project in time,the staff were working at weekends. 答案英语中目的状语和结果状语怎么分?﹏﹏the project in time,the staff were working at weekends.答案上是目的状语,所 初中英语介词（ ）weekends 是in还是at（ ）the evening of August 8th 2008,是in 还是on还是at i have learned a lot of english in this w----------w是首字母,我填weekends为什么不对啊 英语中冬天是第几季 是in snow in winter还是on sonw in winter