Fill in the gap with either FOR or TO

Gap-fill exercise
by A. Denutte

FOR + NOUN (or pronoun or nominal group)
FOR + GERUND (Verb-ing)
TO + VERB
Thank you helping me with my work.
I need to go out buy some vegetables.
We went to London visit Westminster Abbey.
This is you.
Don't forget bring everything for tomorrow.
Take a pullover be sure you don't get a cold.
Sorry being late.
John has gone into town look a book.
Sorry interrupt but I've got a question.
He changed job a better salary.
That has nothing do with it.
You shouldn't do that the money.
I go to the gym twice a week keep fit.
He studied hard get a better job.
Can you take that her?
He cooked a special dinner Mary on her birthday.
They collect money children.
They collect money help children.
We try protect the environment and animals in danger.