假设你是一名中学生，名叫李华，曾经到英国学习、生活了三个月。在那期间，你住在大卫(David)家中。现在学习已结束，你刚回到家，特意给大卫写一封70词左右的英文信，内容包括以下方面：

要求：1.信件内容要包含所给的提示信息，可适当发挥。

2.信的开头和结尾部分已给出，不计入总词数。

3.文中不得出现真实的人名与校名。

参考词汇：culture(文化),invite(邀请)

Dear David,

I’ve just got back home. I want to say “Thank you” most at the moment.

______________________________________________________________________________________________________________________________________________________________

Yours,

Li Hua

—What about the book on the bookshelf?—I think it's ___________useful one.

A.the B.an C.a D./

Tom likes the ___________of the cake. It is a heart.

A.colour B.shape C.size D.smell

—Sixty students in this class? Please tell me something about them.

一OK. ___________of them are exchange students, and all these thirty are local students.

A.Most B.Many C.Few D.Half

Mr Black is rich，___________he is not happy.

A.and B.or C.but D.though

—Here we are. Where does your cousin live, Jim?

一Oh, he lives on the ___________floor.

A.two. B.twice C.second D.twos

A student in Fudan University was killed by his roommate just because of small things in daily life. It is important for students to learn how to ___________each other.

A.get on with B.come over to C.stay away from D.come up with

—How long may I keep your dictionary?

—For two weeks. But it mustn't ___________to others.

A.borrow B.lend C.be borrowed D.be lent

I don’t study as ______ as Amy and always make more mistakes in my homework．

A.carefully B.more carefully C.careful D.more careful

－How long have you lived in the new flat?

－ 2010.

A.In B.After

C.Since D.Before