1/ A (at-> on)
2/ A (uses to play -> used to play)
3/ C (no -> nothing)
4/ B (losting -> lost)
5/ B (exciting -> excited)
6/ B (finded -> found)
7/ A (on -> at)
8/ D (for -> of)
9/ B (traditional ->tradition )
20/ B (wisdom -> wisely)
CHÚC BẠN HỌC TỐT !