Difference between 'that' and 'which'

[wanderer]

English Error, Elementary Level

ESL/EFL Test #5 "Relative Pronouns", question 4

I'm looking at the photograph whom you sent me with your letter.

(a) looking
(b) the
(c) whom

English Error, Elementary Level

ESL/EFL Test #5 "Relative Pronouns", answer 4

I'm looking at the photograph which you sent me with your letter.

Correct entry: which
The error was: (c) whom

You have found the error but your entry is incorrect.
I'm looking at the photograph that you sent me with your letter.
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please tell me what diferent between THAT and WHICH in this case?

wander

[Alan]

Hi,

You could also use that in this sentence. I have written some notes on relative pronouns, which you might like to read:

http://www.english-test.net/lessons/21/index.html
http://www.english-test.net/lessons/22/index.html
http://www.english-test.net/lessons/23/index.html

Alan
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English as a Second Language
You can read my ESL story A day in the life of a parliamentary candidate