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9. When and where to hold the sports meet is not decided yet.

8. She is the only one of the students who have been invited to the party.

7. The windows which faces south are all broken.

6. Machines of this new type is made in Wuhan.

5. About 70 percent of the students is from the south, and the rest of them are from the north and foreign countries.

4. Neither of these words are correct.

3. Tom, together with Mary and Alice, are going to swim this afternoon.

2. The teacher and writer are her friend.

1. The questions raised by the boy is very important.

10. Four hours are enough to do the work.

B級　 單項單句改錯