II. Chia động từ đúng của động từ trong ngoặc (câu điều kiện loại 1 hoặc loại 2)
1. If today _______ (not be) cold, we would go swimming.
2. If I throw an object away, it _______ (drop).
3. If Hoang ______ (study) harder, he would get good marks.
4. If it don’t rain, I and my best friends ___________ (go) out.
5. We ________ (not have) dinner if we arrive so late. 
6 I can lend you some money on condition that you _________ (give) it back soon.
7. Liz gave me this ring. She _________ (be) very upset if I lost it.
8. I’ll sell the piano in case I ________ some money. (need)
9. If you took more exercise, you __________(feel) better.
10. If you see Rachel, ____(tell) her to visit my sister