1. My sister is very keen ..........on................. growing roses
keen in : thích làm cái gì đó
2. She's bored ............with.................. her job
bored with : chán với việc gì đó
3. Her parents tried to prevent her ...........from...................... going abroad
prevent sb from st: ngăn chặn người nào đó làm việc gì đó
4. Have you found ....................out................ how much the ticker cost ?
found out: tìm ra