She changed so much that I could hardly _______ her when we met again after a separation of 20 years.

A. recognize        B. know

C. remember         D. tell

 Mary came home happily, which showed 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 about to set out _______ you knocked at the door.

　 A. before　　　 B. as　　　 C. when　　　 D. while

 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

 Mr. Green _______ goes to the park for a walk with some friends after upper.

A. frequently

B. immediately

C. fluently

D. finally

—What did the teacher say?

—He told me _______ again.

A. not to careless

B. not to be careless

C. to be not careless

D. not being careless

 Students are required to _______ down what the teachers teach in class. Which of the following is wrong?

   A. set      B. put        C. write          D. make

 You'd better _______ your score and see if you have passed the exam.

   A. add up to         B. add to      C. add up        D. add

 The hostess left the money on the desk _______ to test the honesty of her maid.

    A. on purpose       B. by chance     C. by mistake    D. with care