1) If people don’t recycle, the planet ____ polluted. a) gets b) get c) got d) getting 2) If it doesn’t rain, farmers ____ food. a) has less b) having less c) have less d) had less 3) If the teacher doesn’t arrive, the students ____ noisy. a) becomes b) became c) becoming d) become 4) If cats are hungry, they ____ loudly. a) meows b) meow c) meowed d) meowing 5) If the dog is hungry, it ____ a lot. a) barks b) bark c) barking d) barked 6) If students don’t listen, they ____ the exercise. a) missing b) misses c) miss d) missed 7) If the baby cries, the parents ____ worried. a) is b) was c) be d) are 8) If my sister is tired, she ____ to bed early. a) go b) going c) went d) goes 9) If people don’t wash their hands, they ____ sick. a) gets b) get c) got d) getting 10) If it’s cold, children ____ jackets. a) wears b) wearing c) wear d) wore 11) If teachers ask questions, students ____ answers. a) gives b) giving c) gave d) give 12) If my phone has no battery, it ____ . a) die b) dies c) died d) dying 13) Find the mistake: If she don’t study, she fails the test. a) fails b) study c) test d) don’t 14) Find the mistake: If Tom and Sara plays soccer, they are happy. a) plays b) soccer c) are d) happy 15) Find the mistake: If the baby cry, the mother comes. a) baby b) cry c) comes d) mother

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