3. 他老是打游戲，學習成績越來越差。

He is always playing computer games， and the results of his studies are becoming             

2. 我認識戴維已經(jīng)不止20年了。

I have known David for               20 years.

1. 獨生子女政策巳在控制中國人口方面起了很好的作用。

The      policy has      in          China's population.

5. Sixty percent of the students in our class        (be) interested in the movie.

4. One      (three) of the water is from the river.

3. Now there is less         (live) space for each family than before.

2. If you have any         ( difficult) ，call me at once.

1. It's difficult for the kid____________ ( carry ) the heavy box.

 從方框中選出合適的短語并用其適當形式填空。

deal with, half of,because of,so far,be known as

1. Edison      a great inventor.

2. Fve been  cheated！       these potatoes are bad！

3. Can you tell me how to       the problem?

4._______________ ，I haven't heard from him.

5. She was two hours late      the bad weather.

5. His wife's health has become w       than before. He is very worried about her.