sure/certain

0 no, they are the same 0-

0Hi,02br
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01font00"It isn't quite 01u00sure02u00 that he will be present at the meeting."02font02br
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01font00"It isn't quite 01u00certain02u00 that he will be present at the meeting."02font02br
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0 Personally, I would use 01i00certain02i00, not 01i00sure02i00.02br
01i00It isn't quite certain that ...02i02br
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00 I tend to use 01i00sure02i00 to describe people.02br
01i00I am sure that ...02br
00 She was sure that ...02br
00 Jo

0Thank you for your help.02br
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00Your explanation is helpful to me.02br
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00Thanks.0-

0 01blockquote

01cite10Clive12cite11font10"It isn't quite 11u10sure12u10 that he will be present at the meeting."12font12br
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10The words 'sure' and 'certain' are most commonly used for people (He is sure ...). 10In the above examples, I'd prefer a word like 'defini

0Hi,02br
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00I wouldn't say it's absolutely wrong. I said I myself would prefer to say it differently.02br
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00'Sure' can be used in the sene of 'definite' or 'reliable', eg02br
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01font00- Bet on that horse, it'll win the race.It's a sure thing.02font02br
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0 Yeah, just like CJ said, "It isn't quite sure..." is a poor sentence. When I hear something like that, I would think, who is this 'it'?02br
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00For "It isn't quite certain...", I would understand the 'it' to mean the situation.02br
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00It's like that because certain and sure are very different although they feel similar. You can take surely and cer