doesn't work, won't work or wouldn't work?

[Lxguy]

I sometimes feel that they share the same meaning,but I am often forced to make a choice between them in many tests here.
Would you please tell me the different use between them?
By the way,here are some multiple choice.Would you make a choice for me?Thanks.

1 Mike, come and have a look once again at my computer,please.My "Enter ''key _____.
A.didn't work B.doesn't work C.won't work D.shouldn't work

2 Jeff,please lend me a hand.My drawer _____open.
A.doesn't B.can't C.won't D.mustn't

3---Can I help you,sir?
---Yes ,I bought this radio here yesterday ,but it ____.
A.didn't work B. won't work C.can't work D.doesn't work

4. I have tried many times ,but the car just ____.
A.won't start B. wouldn't start C.doesn't start D.didn't start

5.--- What's wrong with your pen?
--- The ink _____ out anyhow.
A.won't come B.doesn't come C.wouldn't come D.didn't come

[Mister Micawber]

Please make your own choices first, and then we will check them.
_________________
Native English teacher at Mister Micawber's

[Lxguy]

1 Mike, come and have a look once again at my computer,please.My "Enter ''key _____.
A.didn't work B.doesn't work C.won't work D.shouldn't work
Key:B.doesn't work or C. won't work

2 Jeff,please lend me a hand .My drawer _____open.
A.doesn't B.can't C.won't D.mustn't
Key: C. won't

3---Can I help you,sir?
___Yes ,I bought this radio here yesterday ,but it ____.
A.didn't work B. won't work C.can't work D.doesn't work
Key: D. doesn't work

4. I have tried many times ,but the car just ____.
A.won't start B. wouldn't start C.doesn't start D.didn't start
KEY: B. wouldn't start

5.--- What's wrong with your pen?
--- The ink _____ out anyhow.
A.won't come B.doesn't come C.wouldn't come D.didn't come

KEY:A. won't come

[Sureshvemuri]

1.
won't work= Initially it worked. But from now on, it won't work (tells about the behaviour from this time to the future).
Does not work = It never works.

This "Does not - Will not" can be applied to anything.

[Mister Micawber]

Except that that is not true, Suresh. I can complain that my watch 'doesn't work', even though it worked quite well yesterday.
_________________
Native English teacher at Mister Micawber's

[Mister Micawber]

There's no point in just presenting the answers from the Key, Lxguy. I don't need the information-- I need you to try to work out the answers yourself.
_________________
Native English teacher at Mister Micawber's

[Lxguy]

I think there is no difference between 'doesn't work' and 'won't work'. So I feel rather puzzled when I read these multiple choices.I wonder if you can give me some explanations in detail.Thanks.

[Mister Micawber]

Both are fine and synonymous in that quiz sentence. Of course, in other situations, they are different:

My boss doesn't work on Sundays.
My boss won't work next Sunday.
_________________
Native English teacher at Mister Micawber's