4. Who forgets easier, he or his brother?

3. Lucy is the cleverest of the two sisters.

2. This park is as more beautiful as that one.

1. New York is one of the biggest city in the world.

5. David ______ (break) his arm when he ______ (play) basketball last Sunday.

III. 改错。(10分)

4. Look! She ______ (skate) really fast!

3. Last term he ______ (spend) a lot of time ______ (practice) his English.

2. ______ she ______ (like) to learn how to cook and sew?

1. ______ (be) Mary's favourite subject Home Economics?

5. Every month they go on a school trip to a ______ (博物馆).

II. 用所给动词的适当形式填空。(5分)