1. Her brother has a ball. (改为一般疑问句)
    _____ her brother _____ a ball?
2. My sister has a computer game. (改为否定句)
    My sister _____ _____ a computer game.
3. Ann has a nice tennis racket. (对画线部分提问)
    _____ _____ Ann _____?
4. Do you want to play soccer this afternoon? (改为祈使句)
   _____ _____ soccer this afternoon.
5. My father doesn’t play tennis. (改为肯定句)
    My father _______ tennis.

1. English isn't d_______ to learn, if you have an efficient method.

2. I like v_______ very much, for it is very fun.

3. Playing _______ is indeed really interesting.

4. My sister has a ping-pong _______.

5. _______ is young boys' favorite.

6. We need a _______ ball, Dad!

7. Does your sister have a _______?

8. —Where is your pencil, Dave? —It's in the _______ on the desk.

9. There are many _______ on the tree.

10.  His sister has two _______ They're very nice.

1. At last I r         I had left my book in the library.
2. My sister has a dentist's a          this Saturday.
3. There used to be various of animals on this t          island.
4. Our main p        is to inquire the possibility of establishing a long-term business relations with your
company.
5. But the t         is that most of the doctors are facing the moral dilemma.