=>
1. The worker is clever enough to make fine things from wood.
-> adj enough to V : đủ...để
2. My father explained about the subject more clearly than my brother did.
-> explain là động từ -> so sánh hơn của trạng từ more adj than
3. I used to live on the farm with my grandma ten years ago.
-> used to V : đã từng
4. He spends all of his free time collecting stamps.
-> spend time Ving ~ take time to V
5. He isn't tall enough to stick the picture above the window.
-> be (not) adj enough to V
6. He has short and black hair.
-> have/has : có
7. Mary is not old enough to get married.
-> be (not) adj enough to V
8. We are going to meet her at the airport tonight.
-> be going to V