Paul decided to join the army after the first year at college and he was in it ever since
Paul decided to join the army after the first year at college and he was in it ever since
A. to join
B. the
C. at college
D. was
Đáp án D
Was -> has beenThì hiện tại hoàn thành diễn tả hành động xảy ra trong quá khứ và kéo dài đến hiện tại
