1.it's dangerous to go out alone at night. ->I find................................... 2.we have little time to prepare the speech. ->we don't have.......................

`1` I find going out alone at night dangerous. 

Hoặc : I find it dangerous to go out alone at night. 

- It's + adj + (for sb) + to V : như thế nào (cho ai) để làm gì.

- find sth/doing sth + adj/find it + adj + to V.

`2` We don't have enough time to prepare the speech.

- little + danh từ không đếm được.

- Cấu trúc "enough" đối với danh từ.

- Cấu trúc : S + V + have + enough + N + (for sb) + to V.