35.The newly learnt words will soon be forgotten ______ frequently used in everyday communication.

A. if they are　　　　 B. unless they are　　　 C. when they are　　　 D. till they are

34. ______ I enjoy the book with some nice pictures, I don’t have enough money to buy it.

A. Since　　　　　 B. While　　　　　　 C. As　　　　　　　　 D. If

33.In a big hall above the supermarket, where a party ______ , some salesgirls were busily setting the table.

A. was to be held　　　　 B. has been held　　　 C. will be held　　　 D. is being held