They ……………. skiing since they were 15.
A. have never gone
B. has gone never
C. has never gone
D. have gone never
Đáp án đúng: A
Dịch: Họ chưa bao giờ đi trượt tuyết kể từ khi họ 15 tuổi.
He………. more concerned about his social status since he started working there.
Choose the correct answer to complete the sentence
You ……………… a lot since the last time I saw you.
Kathy …………….. for three different companies since graduating two years ago.