I. Conditional sentences – type 1: (câu điều kiện – loại 1) *TYPE 1:If (s+V/Vs/Ves/don’t+V/Doesn’t+V), S+will/won’t+V. (ngoài will, ta có thể dùng can. May. Must,…) 1. I (buy) …………………….a car if you lend me some money. 2. If the book (not be) ………………………….expensive, I'll buy it. 3. Ill go out if it (not rain) ………………….. 4. If that hat costs much, I (buy) …………………a small one. 5. If she (make) …………………….that mistake again, her teacher will get angry with me. 6. I will lend them some money if they (ask) ………………….me. 7. My dog will bark if it (hear) …………………………any strange sound. 8. They (let) …………………….you in if you come late. 9. He’s waiting for his mother to come back from Chicago. If his mother (come) ……………home, he will have a lot of presents. 10. The kitchen will look better if we (have) …………………….red curtains. II. Conditional sentences – type 2: (câu điều kiện – loại 2) Type 2: If (S + were/ were not/ V- ed/ V- cột 2/ didn’t + V), main clause (s + would/ could/ …(not) + V ) 1. Would you like if I …………………..(close) the windows? 2. What would happen if I …………………(not do) that? 3. He couldn’t understand if we ………………..(not explain) more. 4. If we didn’t visit her, she ……………………(be) very sad. 5. We …………………(not be) tired if we didn’t try to do that. 6. If I refused, he …………………….(be) very disappointed. 7. I ……………………(take) this job if I were out of work now. 8. You would be very upset if you …………………(lose) it. 9. He would feel better if he …………………(exercise) more. 10. I (tell)……………………….. the answer if I knew it.