1) If you ________ the oil filter, the engine will run better. a) replace b) replaces 2) If the driver __________ the bolts, the wheel will be unsafe. a) don't tighten b) doesn't tighten 3) If the GPS _______ traffic, we will drive through the service road. a) show b) shows 4) If the driver __________ the speed limit, the police will stop him. a) don't respects b) doesn't respect 5) If the weather ________ worse, we will stop at a truck stop. a) gets b) get 6) If the driver __________, he will have an accident. a) don't slow down b) doesn't slow down 7) If we _________ the logbook, the inspector will let us go. a) show b) shows 8) If the driver ___________ his license, he will get a fine. a) doesn't carry b) don't carry 9) If we __________ the cargo well, the truck will be stable. a) balance b) balances 10) If the driver ______________ the load, it will get wet. a) doesn't cover b) don't cover 11) If you __________ at night, I will sleep in the cabin. a) drives b) drive 12) If the driver ____________, he will feel sick. a) don't rests b) doesn't rest 13) If we _________ efficiently, the customer will be happy. a) drive b) drives 14) If we __________ the schedule, we will be late. a) don't follow b) doesn't follow

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