I'm writing a letter ____ my friend. A.to B.for C.at D.on
问题描述:
I'm writing a letter ____ my friend. A.to B.for C.at D.on
答
A,write to sb 是固定词组
I'm writing a letter ____ my friend. A.to B.for C.at D.on
A,write to sb 是固定词组