关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 公告:维护QQ群:833371870,欢迎加入!公告:维护QQ群:833371870,欢迎加入!公告:维护QQ群:833371870,欢迎加入! 2022-06-06 We should open the window often to let ( ) in . ( ) A: fresh air B: fresh airs C: a fresh air D: fresh the air We should open the window often to let ( ) in . ( )A: fresh air B: fresh airs C: a fresh air D: fresh the air 答案: 查看 举一反三 Open the window and let ____ some fresh air . Please open the window, and let the fresh air _______. A: in B: out C: from D: off .___fresh air it is in this village . Fresh air is ______ to good health. Do you mind _____ I open the window? There's no fresh air! A: what B: if C: why D: how E: when