I/Gạch chân đáp án đúng 1) If that hat costs much, I (would have bought/will buy/bought/would buy) a small one. 2) If you (drive/drove/had driven/driven) more carefully, you wouldn’t have had so many accidents. 3) If I (make/makes/made/had made) that mistake again, my teacher will get angry with me. 4) If I spoke English, my job (was/were/will be/would be) a lot easier.