—Is your brother a quiet boy?— No, he never stops
The Changjiang River is _________in the world.
Daniel is my friend. I like to share my with him when 1 am happy.
--- is your pencil ? ---It’s blue and white .
下面字母中既是英文字母,又是英文单词的是 。
不明飞行物的英文缩写是 。