Помогите вставить правильный предлог (for, with, in или from) 1. My dad works (...) Brown...

Question

Помогите вставить правильный предлог (for, with, in или from)
1. My dad works (...) Brown and Co.
2. He is (...) charge of ten people.
3. He can't deal (...) his problems.
2. He's responsible (...) a team of people.

Answer 1

1) My dad works with Brown and Co.
2) He is for charge of ten people
4) He' responsible from a team of people