Ten years _______ really a very long time.

Some of the oranges __________ turned bad. Some of the milk __________ turned sour(酸).

-Mum, look! My trousers __________ too short. Can you buy me a new __________?
-OK.

The number of the people who __________ cars __________ increasing.

His family __________ all very well. His family __________ a "five good" one.

_____ of the students _____ boys in our class.

Our English teacher_____ us, so our English is the best of all.

短文改錯。
     Skin-diving is a new sport today .This sport take(1) you into a wonderful new world .It is likes (2) a
 visit to the moon .When are under water ，it is easy for you climb (3) big rocks，because you are no
  longer heavy . Here, under water , everything are (4 ) blue and green .During the day , there is enough
 lights (5) for to see things in the water .When fish swim nearby, you can catch them by (6) your hands .
 When you have tanks of air on your back, you can stay in deeply (7) water for a long time . So (8)  you
  must be careful when you dive deep water.

Tom is only three years old, so he _____.

Not only I but also my brother  _____ going to the zoo.