1. My mother allowed me to go out with my friend last night (let s.one do s.th = allow s.one to do s.th: cho phép ai làm gì)

2. It is not warm enough to go out (adj/adv + enough + (for s.one) to do s.th: đủ cho ai làm gì)

3. He went to London last year because he wanted to learn English (Because + Clause, Clause: bởi vì)

4. It is too hot for me to drink coffee (too + adj/adv + (for s.one) to do s.th: quá cho ai làm gì)

5. It was clever of him to work out the answer (It + tobe + adj + of s.one to do s.th: ai đó như thế nào khi làm gì)

6. We were relieved to hear that David had arrived (tobe relieved to do s.th: nhẹ nhỏm khi làm gì)

7. The papers are ready for you to sign (ready (for s.one) to do s.th: sẵn sàng (cho ai) làm gì)

8. I am not tall enough to reach the top shelf (adj/adv + enough + (for s.one) to do s.th: đủ cho ai làm gì)