Giúp mình 2. Employees are strictly forbidden from purchasing anything without authorisation. PURCHASES On no ___________________________________ by employees without authorisation. 3. It was the origins of the custom that I found most intriguing. BY What __________________________________, were the origins of the custom. 4. As curator of this museum, he has a broad knowledge of European art. STRANGER As curator of this museum, he ___________________________________ European art. 5. The principal eventually made Alan admit that he had copied a classmate’s essay. OWN The principal eventually got ___________________________________ a classmate’s essay. 6. If I were you, I’d consider it carefully. THINK What you ___________________________________ carefully. 7. The race was such an exciting one that the spectators cheered. HAD So exciting ___________________________________ the spectators cheering. 8. You won’t save any money if you overspend. BUDGET Only by ___________________________________ be able to save any money.