We want to ________ some information about the Olympics on the Internet.
A.invent B.search for
C.look D.find out
I've ________ arrived at our school，but I haven't entered the classroom ________．
A.already；already B.yet；already
C.yet；yet D.already；yet
—You look unhappy，David.
—I invited my classmates to play basketball this morning，but ________ of them came.
A.nobody B.all C.none D.everybody
It's very dangerous for us ________ the mobile phone while crossing the street.
A.answering B.to answer
C.answer D.answers
(2017·重庆B卷·27)Dave is a good boy and he always finishes ________ his homework on time.
A.do B.did
C.does D.doing
假如你是李华，你的美国朋友 Tim 给你发来电子邮件，询问你有何梦想。请你给他 回复电子邮件，主要内容包括：
1. 你的梦想是什么；
2. 你为这个梦想做过什么；
3. 为实现梦想你还需要怎样努力。
要求：
1. 内容要全面，语言表达要准确，语意要通顺、连贯；
2. 词数不少于 80 词。
Dear Tim,
How’s it going?
Yours,
Li Hua
