What is the difference between present perfect and past perfect?

[Vara]

English Grammar Tests, Elementary Level

ESL/EFL Test #57 "Chit Chat: At the pub", question 3

Charles: And I see you've ......... your little dog with you.

(a) brining
(b) brings
(c) brought
(d) bought

English Grammar Tests, Elementary Level

ESL/EFL Test #57 "Chit Chat: At the pub", answer 3

Charles: And I see you've brought your little dog with you.

Correct answer: (c) brought

Your answer was: correct
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what is the difference between Have & Had?

For Instance,

I have done my graduation in BSc Computers
I had done my graduation in Bsc Computers

which one is correct, Detailed answer would be appreciated..
Thank you so much in advance, This site and you people are helping me learn English, I appreciate your efforts.

Vara

[Alan]

Hi Vara,

I see you have brought in this sentence refers to the fact that the dog is here now and that explains the use of the Present Perfect. If you said: I see you had brought (Past perfect) your dog, you would have to indicate another time in the past in relation to it.

In your sentences:

[Yankee]

As far as I know, not even the Brits would say "I graduated in a BSc..."

I'd suggest saying: "I graduated with a BS in Computer Science". :wink:
.
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[Alan]

Youre quite right, Amy. What I meant by *** in my sentence was the subject - computing.

Alan
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