是in the weekend还是at the weekendsrt,我们老师讲的是at,但是刚刚用在线翻译说是in the weekend,而且还没有加s,那个是正确的,求指导

我们说 on weekend ,at weekend,还是in the weekend 是at the weekend 还是用in?还是其他的~ 我经常在周末去爬山I often go climbing ()the weekend在周末是in the weekend,还是at the weekend 讲明原因 是 in the weekend 还是 on thr weekend 如题. 是 What do you do at the weekend 还是What do you do on the weekend on the weekday还是on weakday at还是in the weekend 还有以上的weekend weekday 用加s么 是in the weekend还是at the weekendsrt,我们老师讲的是at,但是刚刚用在线翻译说是in the weekend,而且还没有加s,那个是正确的,求指导 应该用on the weekend 还是 in the weekend? in/on/at this weekend是in this weekend,on this weekend还是at this weekend in on at 关于时间的用法在下周 next week 前的介词用哪个 on the weekend/ in the weekend/ at the weekend.三个短语怎么区别? 在周末用英语怎样表达是at the weekend 还是 on the weekend 二者有什么区别吗? l work in the garden at the weekend对at the weekend提问 顺便帮翻译 关于in和on的用法是in yeaterday morning还是on yeaterday morning是in sunday afternoon还是on sunday afternoon是at the weekend 还是 in the weekend第一个应该改成 是in yesterday morning还是on yesterday morning 是in the weekend还是at the weekend,如果都行,那二者有何区别?用on行么?这里有一道题:What do you usually do _____(in,at) the weekend?大虾们帮我讲一讲这题选哪个？要具体的分析哦！ 在周末是用at the weekend还是on the weekend?小学课本用on,初中课本为什么又用at? What did they do at the weekend?They ______ in the park.横线里面填 were run 还是填 ran. weekday和weekend前面用in,on还是at 是at night还是in the night