I was just wondering how astronomers ......... their facts when you realise just how far away the stars are.

I was just wondering how astronomers ......... their facts when you realise just how far away the stars are. (a) come out with (b) come up with (c) come along (d) come out Please help me! I dont know which answer is correct. What diffrence among a, b, c and d?
7 years ago
Asked 7 years ago
Zinnia

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A. come out with
Answered 7 years ago
King

(b) come up with ( = find, produce); come out with something is to say something or release something (as a book or movie).
Answered 7 years ago
bogus English teacher

B. come up with
Answered 7 years ago
Hank

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