Do the Smiths live next to you?No,but they （）.a.used to b.used to do it c.used to be d.used选哪个,为什么详细点如果是used to do对吗,

分类: 作业答案 • 2022-05-04 12:06:05

问题描述：

答

A
used to do sth 过去常常做某事
这里省略了括号部分used to ( live next to me)used to do 可以吗，如果不可以错在那

Do the Smiths live next to you?No,but they （）.a.used to b.used to do it c.used to be d.used选哪个,为什么详细点 如果是used to do对吗,