Posted by John on Wednesday, June 10, 2009 at 7:10am.
1. Most boys grow a lot between the ages of 9 and 14.
2. Most boys grow a lot between the age of 9 and the age of 14.
21. Most boys grow a lot between at the age of 9 and at the age of 14.
22. Most boys grow a lot between at the age of 9 and the age of 14.
3. Most boys grow a lot between at 9 and 14.
4. Most boys grow a lot between at 9 and at 14.
(Are they all the same?)
5. He grew 7 cm last year.
6. He grew 7 centimeters last year.
7. He grew by 7 cm last year.
(Are the three sentences grammatical?)

english  SraJMcGin, Wednesday, June 10, 2009 at 9:19am
#2.1, #2.2, and #3, #4 = for both of these you can not use both "between" and "at" and because of 2 years, between is best.
The last set is OK. (5, 6, 7)
Sra
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