1 . I ______ have worried before I came to the new school, for my classmates here are very friendly to me.

A．mightn’t	B．mustn’t
C．needn’t	D．couldn’t

2 . The obvious one is money；eating out once or twice a week may be _____________ (afford) but doing this most days adds up. （用单词适当形式填空）

3 . From ______ top of Mount Tai, you can get ______ wonderful view of sunrise.

A．a; the

B．the; a

C．a; /

D．the; /

4 . I appreciate       ______（give）the opportunity to work in your company two years ago. (所给词的适当形式填空）

5 . Some students found difficulty ______ for the test in three days.

A．prepare

B．to prepare

C．prepared

D．preparing

6 . Corporate knowledge________(combine) with creativity has brought his humble bookstores into the 21st century! (所给词的适当形式填空)

7 . —Is it good to look up every new word when I come across it in reading?
—No. You ________, because you are likely to guess the meaning from the context.

A．can’t

B．mustn’t

C．don’t have to

D．ought not to

8 . And ________ ________ (说起) home, why aren't homework and housework the same thing?(根据汉语提示完成句子）

9 . My mission was________ (relieve) Emma, a Canadian specialist in infectious diseases at the end of her posting.(所给词的适当形式填空)

10 . _______ a satisfactory operation, David’s father will recover from the illness very soon with the doctors and nurses taking care of him.

A．Having given

B．Given

C．Being given

D．Giving