Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.

Câu hỏi

She hasn't paid as much attention to her children as she _ since she _ working.

A. does – starts

B. did - started

C. was doing - was starting

D. has done - would start

Đáp án
B. did - started

Câu hỏi thuộc Bài tập:

She hasn't paid as much attention to her children as she _____ since she _____ working.