Question

1Mary used to get up early in the past,  __________ ?

A. used Mary         B. didn’t she            C. wasn’t she        D. did Mary

Answer 1

【答案】

B

【解析】used to 表示過(guò)去常常，帶有used to 的句子其疑問(wèn)句或否定句要借助助動(dòng)詞did。