— I must apologize for ____ ahead of time.

— That’s all right.

A. letting you not know　　　 　　 B. not letting you know

C. letting you know not 　 　　　　　 D. letting not you know

 The children _________ for the accident. After all, they were so young.

A. should not be to blame            B. not to be blamed   

C. were not to blame                D. were to not blame

 The book is _______.

A. worth being read     B. worth to be read    C. worth of being read   D. worth reading

— What does Canada export?

—Large quantities of wheat ______ sent abroad.

A. is　　　 　 B. are　 　　　 C. have 　　　　 D. is being

—Don’t worry; I am sure the doctor will be here in time.

—But what if he _______? It’s going to rain and it’s getting dark.

A. won’t come　 　 B. isn’t coming　 　C. doesn’t come　 　D. wouldn’t come

The world’s population has grown to more than six times ________ it was in 1800.

A. which　 B. that　 C. what　　 D. the number

 The author of the article believes that it is the test system, ______ teachers, that is responsible for the heavy burden of the middle school students nowadays.

A. other than      B. or rather     C. rather than       D. more than

—Where is Kate?

—Look，_______, she is at the school gate.

A. there she is 　 B. there is she　　 C. here you are 　　D. here it is

 We hadn’t expected ________ so many people present at the meeting.

A.there being    B.there to being       C.there is       D.there to be 

 This treatment is not available in _______ hospitals.

A. most         B. the majority        C. the most      D.  mostly