42 : When did your sister start working as an accountant?
A. When have your sister been an accountant ?
B. How long has your sister worked as an accountant ?
C. How long has your sister been working as an accountant ?
D. How long have your sister worked as an accountant ?
Bạn đang xem 42 : - Đề thi thử THPT Quốc gia năm 2017 môn Tiếng Anh trường THPT Cảm Nhân, Yên Bái CÓ ĐÁP ÁN (6)