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！ 2022-06-04 _____are the birds doing? They are singing. A: Who B: What C: How _____are the birds doing? They are singing.A: WhoB: WhatC: How 答案： 查看 举一反三 ______ are the birds doing?—They are singing in the tree. A: Who B: What C: How D: Where ______ are the birds doing? They are singing in a tree. The day breaks， __________ the birds are singing. The day breaks, _________________ the birds are singing. It must be morning, ____ the birds are singing.
