1. would have had
2. swim
3. press
4. asked
5. would call

36. You...would have had........(have) no trouble at school if you had done ( đk loại 3 ) your homework
37. If you.....swim.......(swim) in this lake, you'll ( đk loại 1 ) shiver from cold
38. The door will ( đk loại 1 ) unlock if you......press........(press) the green button
39. If Mel.....had asked ( đk loại 3) ........(ask) her teacher, he'd have answered her questions
40. I.......would call ( đk loại 2) .......(call) the office if I were you
 

1. You would have no trouble at school if you had done your homework.
2. If you swim in this lake, you'll shiver from the cold.
3. The door will unlock if you press the green button.
4. If Mel had asked her teacher, he would have answered her questions.
5. I would call the office if I were you.