Chia động từ trong ngoặc

Chia động từ trong ngoặc
61) If you...................(check) the car, it (not break)……………….. down in the middle of the desert.
62) If it..............(not rain), the children (play)…………………. outside.
63) If my parents.....................(not be) so tired, they...................(watch) the film on TV.
64) If she...........(buy) a new hard disk, she…...........(not  lose) all data.
65) If we...............(use) the town map, we..........................(not get) lost.
66) If Tom...........(eat) more salad, he (not catch) ………………..a cold.
67) If the police...........(not stop) me, I......................(reach) you in time.
68) If his older brother.................(not drive) so fast, he.........................(not crash) into the other car..
69) If Fred......................(not cheat) at the test, his teacher.....................(not phone) his father.
70) If I..................(not switch off) the radio, I........................(know) about the second goal.

71/ If I (have) ________ a typewriter, I could type it myself.

72/ If I had known that you were in hospital , I (visit) ________ you.

73/ You could make much progress if you (attend) ________ class regularly.

74/ If I (know) ________ his telephone number, I would give it to you.

75/ If you (arrive) ______________ ten minutes earlier, you would have got a seat.

76/ If he (study) ___________ harder, he can pass an exam.

77/ She may be late if she (not hurry) ________.

78/ Tell him to ring me if you (see) ________ him.

79/ If you (speak) ____________ more slowly, he might have understood you.

80/ What (you do) ________ if you got fat ?