( ) the age of three,应该用哪个介词?on at in to

at the age of three 和 by the age of three有什么区别 at the age of at the age of at the age of from the age of .. many children start______(draw) at the age of three or four. In England ,many children go to nursery school from the age of about three. What could you do at the age of three?的答句 that boy is veryclever,he couldread ( 介词 ) the age of three ( ) the age of three,应该用哪个介词?on at in to Selina went to her first _____ at the age of three. The three boys in this group are said_______.A.to be a same age B.to be of an age C.being the same age D.being an age这倒题很难，听别人说是2008年高考题。 in the age of the Internetin the age of some scientists in America have studied 12 pairs of peregrine falcons produced 47 eggs this spring with 37 hatchlings surviving to the banding age of three weeks,.3851 to the banding age of three He wants【 to live in the big house 】at the age of three【时间状语修饰全句】宾语 in the age of by the age of at the age of的区别in the age ofby the age ofat the age of的区别 英语at the age of?at the age of? by the age of,at the age of的区别?