Bài này ko có chắc :confused::confused::confused:
1. They ______ you in if you come late.
A. won't let
B. not let
C. wouldn't let
D. hadn't let
2. She plays the piano ______ as she sings
A. as beautifully
B. more beautifully
C. as beautiful
D. the most beautifully
3. He used to work as _____...