I did a (3) __________course at a very good school and I stayed with a local family.
I did a (3) __________course at a very good school and I stayed with a local family.
A. the three-week
B. third-week
C. three-weeks
D. three-week
tính từ ghép: số lượng-danh từ đếm được số ít -> three-week
Chọn D