问题补充：
Dear Maggie,
I’ve just realized I haven’t written to you for a month. How have you done with yourself since I last see you? In your last letter you said you were thinking of ask for a new job. I’d love to hear what was happened. I’d have phoned, but I may have lost your number. I remember writing it up somewhere and I haven’t been able to find them. Anyway, why I’m writing is tell you I’m having a party next Friday.Whether you’d like to come, I suggest you give me a ring and I’ll give you all the details. I hope you’ll be able to come and looking forward to hearing from you.how改成what
答案：
(答案→)how改成what
解析：
【小题1】how改成what，和do with连用是what。
【小题2】see改成saw，since后面用一般过去时
【小题3】ask改成asking，think of后面接动名词做宾语
【小题4】was改成has或去掉was。Happen不能用被动语态
【小题5】up改成down，write sth down把…写下
【小题6】and改成but，我记得写下的，但是我找不到了。
【小题7】them改成it，这里指代your number
【小题8】is后面加to，用不定式做表语
【小题9】whether改成if，如果你想来，我建议你给我打个电话。
【小题10】looking改成look，和come是并列动词，用原形
