he's w[ ] a letter to his friend 根据句意·首字母的提示或所给的汉语写出单词或词组

问题描述:

he's w[ ] a letter to his friend 根据句意·首字母的提示或所给的汉语写出单词或词组

He's w[riting ] a letter to his friend
他正在写给朋友一封信

Write