I had a letter__(send) in the post office.I was too busy请解释,谢谢!

I had a letter__(send) in the post office.I was too busy请解释,谢谢! 定语从句 she received the letter__ she had been expecting. The letter__(written) in French,so I can't read it.(用正确形式填空） I had a bad i had a dream Dr.Sun Yat-sen had _____for the independence of the country and happiness of the people in all his life.A.asked B.longed C.struggled D.waited I just had a crazy I had a great time I had a very great I also had a cold I Had a Dream 歌词 I,just had a supporting i had a falling out I wish ,I had a 如题~ I had a cold yesterday.对had a cold 提问 i had a busy weekend?为什么用had I had a busy weekend.能用spend替换had吗? Have you finished __the letter__?not__ .a.writing,already,already b.writing,already ,yet c.to write,yet,already d.write,yet,yet