____ it is raining today, I will go home for I haven’t been home for a long time.

A. Because              B. If                    C. Since                 D. Even though

 She looks sad. Could you please tell me ____ that prevents her from being as happy as before?

   A. What it is               B. it is what             C. how it is                 D. it is how

Mary came home happily, which suggested that she _______ the final exam.

  A. had passed            B. pass                         C. would pass        D. would have passed

He fell ill ________ three years’ hard work. .

A. as        B. because              C. since             D. because of

------Oh, you are still here. I thought you had left.

------- I was __________ to set out when you knocked at the door.

A. wanting　　　　　　　 B. about　　　　　　　　　　　 C. up　　　　　　　　　 D. having

The money collected should be made good use ________ the people in Taiwan who suffered a lot in the earthquake.

     A. of helping                 B. to help                 C. to helping               D. of to help

The book Robinson Crusoe ________ on the book by Daniel Defoe is well worth ______.

  A. basing, reading      B. based, being read       C. to be based, to read D. based, reading

-----Which driver was to blame?

   -----Why, ________! It was the child’s fault, clear and simple. He suddenly came out between two parked cars.

  A. both                     B. each                         C. either                D. neither

21^st Century School Edition is ________ a newspaper. It helps us to improve our English a lot.

  A. no less than           B. no more than            C. less than            D. more than

The Great Wall travels ________ deep valleys, __________ deserts and ________ mountains.

A. over, across, through                                B. through, over, across  

C. across, through,, over                             D. through, across, over.