He wrote the letter last week and posted it three days ago.改成一般现在时态和现在完成时态.
问题描述：
He wrote the letter last week and posted it three days ago.改成一般现在时态和现在完成时态.
要加时间状语!
答
一般现在时：He writes the letter and posts it.
现在完成时：He has written the letter and posted it.