Напишите какие правильные, а какие нет(исправлять не нужно)

Dear Nastya.Thanks for your letter. I`m glad to hear that everything is going well. I`m sorre i haven`t written for so long bat i`ve been really busy looking out for a summer job.You asked me about my plans for summer holidays.yes I work. I got a job in a clothing store. I like this work. it will help me to combine good things and pick them correctly at the season. I learn a lot of things to do. be able to determine by referring to the material from which made clothes, whether it is qualitative. teenage summer job the best option when you need to earn. Zell and the days of hanging around the house, too, is not great. Summer job you taught mercy, patience, hard work. 
Дорогая Настя за письмо. Я рад слышать что дела идут хорошо. Я прощения что не писала в течении долгого времени, так как я была действительно занята в поисках летней работы. Ты спрашивала меня о моих планах на летние каникулы.да я работаю. устроилась в магазин одежды. мне эта работа нравится. мне она хорошо сочетать вещи и подбирать их правильно, под сезон. я научусь много что делать. уметь по виду определить из какого материала сделана одежда, насколько она качественна. среди подростков летняя работа лучший вариант когда надо подзаработать. а то целлыми днями дома торчать тоже не классно. РАБОТАЯ ЛЕТОМ ТЫ НАУЧИШЬСЯ милосердию, терпению, трудолюбию.
 Прости некоторые слова с переводчика. сама не смогла.

12. Write the sentences

1. It is raining now.

2. The children are gathering mushrooms in the forest.

3. Grandfather is telling his grandchildren an interesting story.

4. We are discussing a difficult problem now.

5. Carol is buying a new skirt now.

6. The pupils are having geography lesson now.

7. Grannyis looking for her eyeglasses now.

8. I am learning a funny poem now.

9. They are speaking German now.

a) in the negative;

1. It is raining now.

2. The children are not gathering mushrooms in the forest.

3. Grandfather is not telling his grandchildren an interesting story.

4. We are not discussing a difficult problem now.

5. Carol is not buying a new skirt now.

6. The pupils are not having geography lesson now.

7. Granny is not looking for her eyeglasses now.

8. I am learning a funny poem now.

9. They are not speaking German now.

b) in the interrogative.

1. Is it raining now?

2. Are the children gathering mushrooms in the forest?

3. Is grandfather telling his grandchildren an interesting story?

4. Are we discussing a difficult problem now?

5. Is Carol buying a new skirt now?

6. Are the pupils having geography lesson now?

7. Is granny looking for her eyeglasses now?

8. Am I learning a funny poem now?

9. Are they speaking German now?