— What were you doing ______ I knocked at the door?
— I was sleeping.
A．unless B．once
C．when D．while
Mount Xiaolei is not far away from here, but it will still take us a few hours ______ there by bike.
A. getting B. to get
C. got D. get
— Hi, Sara. Is this ______ English book?
— No. ______ is on the desk.
A．your； Mine B．your；My
C. yours；Mine D．your；My
It is necessary ______ us to help our friends out when they meet difficulties.
A．to B．of
C．with D．for
— What did you do last night, Bob?
— First I did my homework, and then I played ______ piano for half ______ hour.
A．the；a B．/；an
C．the；an D．a；the
写作。假设你是李明。上周日你班举行了一次毕业聚会。请根据以下提示，给你的英国笔友 Robert 写一封邮件，向他描述聚会的情况及谈谈你当时的感受。
要求：1. 语句通顺，意思连贯，语法正确，书写规范；
2.必须包含所给提示，并做适当发挥；
3.行文中不得出现真实人名、校名或地名；
4.词数 80左右。（邮件的开头和结尾已给出，不计入总词数）
Hi Robert,
We had a graduation party last Sunday. …
Do you have such a party? Please write soon.
Yours,
Li Ming
