Вопрос по английскому языку:

Помогите,пожалуйста!найдите и исправьте ошибки.
1.These are a lot of pictures in the book.
2.Is it often snow here?
3.They had soup for dinner,hadn't they?
4.Nobody like to play these games.
5.It didn't rain two day ago.
6.These are Mr. Frowns' children.
7.My grandparent's don't work.
8.Where are the pupils's bags?
9.Mr's Flack office is nice.
10.Jane's and Mary's brother is having lunch now.