1 . 在下列句子中的空白处填入适当内容或括号内单词的正确形式。
1. _____ (make)different kinds of friends, I joined an online chat group.
2. When a plane is landing, passengers need to keep their seat belts fastened_____ it has come to a complete stop.
3. _____(train) hard to win the spring marathon is the goal which I’m aiming for.
4. I’ve never quite figured out _____ he can still play the piano after his serious hand injury!
5. Because I _____(take) a power nap, I was able to deliver the important speech with a lot of energy.
6. Many famous people sign their name in a way _____ can’t be recognized.
7. Do you remember _____ amazing time we went hiking together in the Rocky Mountains?
8. _____ the future holds for the field of high-speed travel is unknown to us.
9. If one wants to get ahead in his career, he _____ go without some of the comforts of life.
10. I _____(visit) all 50 U.S. states by my 13th birthday next month, becoming the youngest person ever to do so.

2 . I just heard ________ bank where Julie works was robbed by ________ gunman wearing a mask.

A．the; /

B．a; /

C．the; a

D．a; the

3 . Mr. Smith, ________ headmaster of the school, told us, "________ sixth of students here go on to study at Oxford and Cambridge."

A．/; A

B．/; The

C．the; The

D．a; A

4 . He had wanted to write _________ children's book for many years, but one thing or another always got in _________ way.

A．a; /	B．the; the
C．/; the	D．a; the

5 . Life is like ________ ocean; Only ________strong-willed can reach the other shore.

A．an; the	B．the; a
C．the ;/	D．/ ; a

6 . Tom is ______ fantastic musician. I’m absolutely certain that his next concert will be ______ success.

A．the , a

B．the , 不填

C．a , a

D．a , 不填

7 . First impressions are the most lasting. After all, you never get ___ second chance to make ___ first impression.

A．a; the	B．the; the
C．a; a	D．the; a

8 . --I hear that there was a terrible crash in the subway in Shanghai the other day.
--Yes, _____ news came as _____ shock to all of us.

A．the; the

B．a; /

C．the; a

D．/; a

9 . Dan Brown，_____ author of The Da Vinci Code， is _____ very famous American writer．

A．a;the	B．the;the
C．the;a	D．a;a

10 . The party last night was ______ success. We sang and danced until it came to ______ end at 12:00.

A．a; an

B．a; the

C．the; an

D．/; an