Поставь предложения в утвердительную(+), 1)jane didn*t visit the museum+ 2) harry celedrated his birthday 3) the waiter served delicious 4)mary performed on the stage once a 5)we received a nice postcard 6)did he stay with his friends? (+ 7)we waited at the

6) He didn't stay with his friends.
He stayed with his friends.

1) Jane visited the museum.
Did Jane visit the museum ?
2) Harry didn't celebrate his birthday yesterday.
Did Harry celebrate his birthday yesterday?
3)The waiter didn't serve delicious shrimps.
Did the waiter setve delicious shrimp?
4) Mary doesn't performed on the stage once a month.
Does Mary performed on the stage once a month?
5)We didn't receive a nice postcard.
Did we receive a nice post card?
6) He remained ( забыл как будет stay в Past Simple) with his friends.
He didn't stay with his friends
7) Did we wait at the airport?
We didn't wait at the airport

More and more people suffer from air and water pollution. Nature also suffers from land and nuclear pollution. Among them increasing number of cars in the streets, factory waste, millions of cut down trees, destroyed habitats of animals, contaminated rivers and seas. Fortunately, there are many ways to suspend these problems. If everybody starts caring about the planet we live on, many environmental problems can be solved. 
ПЕРЕВОД:
Все больше и больше людей страдают от загрязнения воздуха и воды . Природа также страдает от земли и химического загрязнения . Среди них увеличение количества автомобилей на улицах , промышленных отходов , миллионная вырубка деревьев , уничтожение места обитания животных , зараженных рек и морей . К счастью, есть много чтобы приостановить эти проблемы . Если все начнут заботиться о планете , на которой живем , многие экологические проблемы могут быть решены

I go to school every day.

Answer: I went to school yesterday

1. I will buy laptop next week

2. She usually returns home at 9 o'clock

3. My mom is cooking a great salad

4. Do you wake up at 7?

5. He doesn't park his car here

6. She can swim

7. You make best situation out of no situation​

Answer:

1. I bought laptop last week.

2. She returned home at 9 o'clock.

3. My mom was cooking a great salad.

4. Did you wake up at 7?

5. He didn't park his car there.

6. She could swim.

7. You made best situation out of no situation​.