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！ 2022-06-01 Words are like the keys of a piano: useless if to be used alone. （ ） Words are like the keys of a piano: useless if to be used alone. （ ） 答案： 查看 举一反三 How many keys are there in the piano? A: 36 B: 52 C: 88 D: 108 I would like to ______ there alone. Time order and emphatic order are used alone. （ ） Our family can't afford to buy a piano, the piano lessons. A: let alone B: let in C: let on D: let off Onomatopoeia is often used alone. A: 正确 B: 错误
