Правильно ли я вставила по заданию?

Задание:Use the prepositions in, for, on, to, of, at where necessary.
1)She is never late at school.
2)We don`t have Computer-surfing on our timetable.
3)They do a lot of sums in class.
4)I don`t like to sit in- the desk in front of the teacher.
5)I`m happy we have Sport 4 times in a week.
6)The Browns are leaving Moscow to Paris on Monday.
7)My sister must go to bed at 9 o`clock.She is five years old.
ПОМОГИТЕ ПЛИЗ БУДУ ОЧЕНЬ ОЧЕНЬ БЛАГОДАРНА!!!!!!!!там где подчёркнуто,там надо вставить.

1)She isnever late for school.
2)We don`thave Computer-surfing in our timetable.
3)They do alot of sums in class.
4)I don`tlike to sit at the desk in front of the teacher.
5)I`m happywe have Sport 4 times in  a week.
6)TheBrowns are leaving Moscow for Paris on Monday.
7)My sistermust go to bed at 9 o`clock.She is five years old.

Если ответ по предмету Английский язык отсутствует или он оказался неправильным, то попробуй воспользоваться поиском других ответов во всей базе сайта.