Correct grammar mistakes: 1. steve are reading a book.2. the children, sam and eric, are play with the toys.3. they are wearing sun glasses.4. pam cooking fish.5. she am crying because the smoke getting in her eyes.6. joe are lying on the grass and listening to music on her personal stereo.7. she eating an orange.8. fred, the dog, is play with the ball.9. i am bathing in the river.10. my father and elder brother is repairing the car.11. my grandpa is fish.12. everybody are having a wonderful time.

1. steve is reading a book.2. the children, sam and eric, are playing  with the toys.3. they are wearing sun glasses.4. pam is cooking fish.5. she is crying because the smoke is getting in her eyes.6. joe is lying on the grass and listening to music on her personal stereo.7. she is eating an orange.8. fred, the dog, is playing with the ball.9. i am bathing in the river.10. my father and elder brother are repairing the car.11. my grandpa is fishing.12. everybody is having a wonderful time.

1.is 2. are playing 4. is 5. is 6. is 7. is eating 8. are 10. are 11. fishing

1 Was the house  destroyed by the fire? 2. Was the grass  cut  by Steve yesterday? 3. Were the books retum to the library?

1. These clothes were not made in China. 2. The window was not broke by Kelly. 3. A magazine was not read by Pam last night. 4. The car was not drove slowly by Tom. 5. The way to the post office was not knew by Ellie. 6. A new jumper was not knit by grandmother last month.  7. The pizza was  not ate by Pauline last night. 8. The question was not answered correctly by James.

Were these buildings  designed  by a famous architect? 5. Was an invitation  sent to everyone? 6. Were these cartoons created by Walt Disney? 7.  Was this book wrote by J.K. Rowling?

1)
1. didn’t have
2. Have been
3. Bought; haven’t worn
4. Have it stopped
5. Sent

2)
1. Have told
2. Told
3. Has sailed
4. Have gone
5. Has answered
6. Answered
7. Went
8. Read
9. Has sold
10. Sold

3)
1. Finished
2. Has written
3. Went
4. Have come
5. Haven’t decided
6. Left
7. Have bought
8. Died
9. Has been
10. Hasn’t arrived

Объяснение.
Present Simple ставится при наличии ярлыка времени, когда мы точно знаем время действия (вчера, год назад)
Present Perfect ставится при действии в , но мы не знаем точное время.

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