Don't be afraid of making mistakes in speaking English.

I'd be happy if someone would answer my questions. Thanks in advance.

Are the following sentences the same in meaning? If not, what's the difference?

A:  Don't be afraid of making mistakes when you speak English.

B:  Don't be afraid of making mistakes when speaking English.

C:  Don't be afraid of making mistakes in speaking English.

Magic-dragon wrote:

I'd be happy if someone would answer my questions. Thanks in advance. Are the following sentences the same in meaning? If not, what's the difference? A:  Don't be afraid of making mistakes when you speak English. B:  Don't be afraid of making mistakes when speaking English.

These two are the same in most contexts.

Magic-dragon wrote:

C:  Don't be afraid of making mistakes in speaking English.

I do not sense the same thing about sentence #3. Could you give an example to help me sense it? 

Thanks !

--- I'm an original poster, Magic dragon. I too think C is different from the other 2. I saw in a book (In this book I found many grammar mistakes) the description saying all 3 are the same. Of course I'm very doubtful about it, and wanted other people's opinions.

I think "in ---ing" is the same as "by ---ing" or means some kind of progress leading to a completion.
Am I right?
I think in the latter meaning, the following 2 samples can be written.

A: You should be careful in crossing the road.
B: I was very happy in writing the book.

I think these 2 are correct. Am I right?
But I think the following sentence (C) is awkward.
C: You should be careful in choosing friends.
Am I right?

One more thing I want to ask is if "in ---ing" can be replaced by using "as".
Are the following 2 sentences the same in meaning?

A: You should be careful in crossing the road.
D: You should be careful as you cross [are crossing] the road.