это ответ на вчерашний тест, вариант №3. под катом я своими словами излагаю разницу.
definitely паказывает, что выполнение действия определяется лишь нашей волей.
surely подразумевает, что наружные обстоятельства складываются в нашу пользу.
You use definitely to emphasize that something is the case,
or to emphasize the strength of your intention or opinion.
I'm definitely going to get in touch with these people...
`I think the earlier ones are a lot better.'—`Mm, definitely.'
If something has been definitely decided, the decision will not be changed.
He told them that no venue had yet been definitely decided.
You use surely to emphasize that you think something should be true,
and you would be surprised if it was not true.
You're an intelligent woman, surely you realize by now that I'm helping you...
If I can accept this situation, surely you can.
If something will surely happen or is surely the case, it will
certainly happen or is certainly the case. (FORMAL)
He knew that under the surgeon's knife he would surely die...
He is an artist, just as surely as Rembrandt or any other first-rate portrait painter is one.
If you are sure that something is true, you are certain that it is true. surely - наречие, sure - прилагательное
If you are not sure about something, you do not know for certain what the true situation is.
He'd never been in a class before and he was not even sure that he should have been teaching...
The president has never been sure which direction he wanted to go in on this issue...
It is impossible to be sure about the value of land.
If someone is sure of getting something, they will definitely
get it or they think they will definitely get it.
A lot of people think that it's better to pay for their education
so that they can be sure of getting quality...
If you say that something is sure to happen, you are emphasizing
your belief that it will happen.
With over 80 beaches to choose from, you are sure to find a place to lay your towel...
You use exactly before an amount, number, or position to emphasize that
it is no more, no less, or no different from what you are stating.
Each corner had a guard tower, each of which was exactly ten meters in height...
Agnew's car pulled into the driveway at exactly five o'clock... = precisely
If you say `Exactly', you are agreeing with someone or emphasizing
the truth of what they say. If you say `Not exactly', you are telling them politely
that they are wrong in part of what they are saying.
Eve nodded, almost approvingly. `Exactly.'...
`And you refused?'—'Well, not exactly. I couldn't say yes.'
You use not exactly to indicate that a meaning or situation is
slightly different from what people think or expect.
He's not exactly homeless, he just hangs out in this park.