Ⅰ.单项填空(每小题1分，共15分)
1．—Is it likely that human beings can live on the Mars in the far future?
—________You know, science and technology is developing rapidly.
A. I can't agree with you.
B. Maybe.
C. Really?
D. Not really.
2．The girl acted properly and confidently during the job interview, which made a deep________on the employer.
A. impression B. expression
C. permission D. admission
3．As far as I'm concerned, most of your problems in this English Speech Contest come from a________of confidence.
A. danger B. waste
C. relief D. lack
4．—Helen, I hate to say this, but the TV has been on for the whole morning.
—Oh, Mum, I'll________it off.
A. shut B. fold
C. switch D. remove
5．We should make every effort to help those________by the earthquake in Haiti.
A. affect B. affecting
C. affected D. were affected
6．As the famous expert says, the secret to happiness is to think about positive things and stay________.
