*Not a teacher
1) Your answer is correct. But I'd rather use entertained instead of amused.
The film entertained the people.
2) Your answer is correct.
He started to be respected by them.
3) Yes, it is go to. Or get to.
How can I go to Giza? By bus or taxi.
How can I get to Giza? By bus or taxi.
I would choose get instead of go.
4) Your answer is correct. You could also use much, but never many, because money is an uncountable noun and many requires a countable noun.
I don't have a lot of money now, so I can't buy this camera.
I don't have much money now, so I can't buy this camera.
5) I think that both as and when are correct.
Just as I was knocking on the door, my wife opened it.
Just when I was knocking on the door, my wife opened it.
I've noticed that you say choosed. It is not correct, choose is an irregular verb and its past simple form is chose.