Those windows are of a size. 这些窗户大小相同。
＝Those windows are of the same size

They are nearly of an age. 他们基本同龄。
＝They are nearly of the same age.

 

24.   These two Christmas trees are of ___size,but the one they bought yesterday is maybe twice ___size of them.
A. the, the  B. a, the  C. a, a   D. the, a

 

 

 

写作专练2.         用活不定冠词a, an（P15)