( )I have old pen and my brother has new one. A.a, an B.an, a C.a, a——青夏教育精英家教网—

摘要：( )I have old pen and my brother has new one. A.a, an B.an, a C.a, a

网址：http://m.1010jiajiao.com/timu3_id_2639204[举报]

I have old pen and my brother has________new one.
A.a, an B.an, a C.a, a