More Grammatical Errors

A large group of children ________ waiting outside the school.
1. had
2. been
3. were
4. was
Every day I ______ past the old factory
1. going
2. go
3. gone
4. goes
The man in the green coat _________ to take the train instead.
1. have decided
2. as decided
3. has been decided
4. has decided
When I was feel miserable, she made sure she _______ me right.
1. seen
2. saw
3. scene
4. seeing
Unfortunately there _____ too many mistakes in your letter.
1. was
2. were
3. where
4. will
When she has had the operation, I _______ to see her in the hospital
1. am going
2. was going
3. been going
4. were going