What does 'I do.' mean here?

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diamondypy
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Joined: Tue Oct 21, 2014 2:19 pm
Status: Teacher of English

What does 'I do.' mean here?

Post by diamondypy »

Hi, everyone. I read a dialogue like this:
A: I hope he hasn't failed his exam.
B: I do.
What does 'I do.' mean here?
THANKS.
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AskSarah
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Status: Teacher of English
Location: USA

Re: What does 'I do.' mean here?

Post by AskSarah »

"I do" means, "I do...hope he fails his exam."

Another example is,

A: I want ice cream.
B: I don't.
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mandrews
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Re: What does 'I do.' mean here?

Post by mandrews »

In addition to the other poster's answer: 'do' is used as an 'auxiliary verb' in your example.

In English, for stylistic reasons, we don't like like repetition. So, instead of using the same verb twice in a row, we use 'do' instead:
A: I hope he hasn't failed his exam.
B: 'I hope he fails his exam'- using 'fail' again here makes it sound 'clumsy'.

Instead, we will just say: 'I do', meaning 'B' wants the person being talked about to actually fail the exam.
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