D. go swimming

( )28. The farm is open 　　　 days each week.

A. three B. four

C. five D. six

( )29. Little Bob and his mother need to pay 　　　 if they want to have fun on the farm.

A. $42 B. $53

C. $64 D. $86

( )30. Which of the following is TRUE about the farm?

A. It has the best horses.

　　B. It is a place for children to make new friends.

C. It isn't open in September.

D. It has an email address.

Biff was reading a book in her room when her friends Wilf, Chip and Wilma came to visit her. There was a small house in Biff's room, and they found a key next to it. It was a magic (神奇的) key. The magic started working. The children got smaller and smaller.

Biff opened (打开) the door, and then they saw the sea. They ran to the sea. Wilf and Chip played on the beach. Biff climbed up a tree. Wilma played in the sea. Suddenly (突然), they saw a pirate (海盗).

"Oh, help!" the children shouted. They felt frightened.

"I want to have a party," said the pirate,

"but nobody wants to come. Would you like to come to the party?"

The children went to the party on a big ship (船). It was a good party. They loved it!

根据短文内容，选择最佳答案。

( )31. Biff was 　　　 when her friends came to visit her.

A. sleeping

B. reading a book

C. cleaning her room

D. having a party

( )32. Where did they find the key?

A. In the small house.

B. Under the small house.

C. In the front of the small house.

D. Next to the small house.

( )33. The children got 　　　 after the magic started working.

A. taller and taller

B. fatter and fatter