－Dad, Bobby _______hitting me.

    － Bobby,_______ doing that.

    A. keeps; stop       B. keeps; keep        C. stops; keep        D. stops; stop

－Are people around you used to _______things online?

    －Yes. It's much easier, and also cheaper.

    A. order            B. orders            C. ordered           D. ordering

You _______have a wrong number. There's no Mr Johnson here.

    A. need            B. would             C. must             D. can

I haven't gone back to my hometown _______I left it in 1993.

    A. when           B. since              C. as               D. till

－I'm too nervous to give a talk in front of so many people.

    _______, Lucy. You can do it.

A. Come on        B. That's great         C. You're right       D. That's true

No one wants you to be _______ but we really want you to do your best always.

    A. proud          B. perfect             C. polite           D. popular

－Could you please help me check what's wrong?

    －Sorry, I don't have much _______of the computer.

A. introduction     B. development        C. knowledge       D. information

－Why does the river smell terrible?  －Because the water_______.

    A. was polluted     B. has been polluted    C. will be polluted    D. has polluted

一Have you read today's morning paper?

   －Not _______. What's the latest news?

    A. only            B. yet               C. ever             D. just

－How about the pollution in the countryside?

    －Luckily, it's not as serious as _______ in the big cities.

    A. that               B. it           C. one         D. those