Mr. Smith owns _____collection of coins than anyone else I have ever met.     

A. larger         B. a larger       C. the larger      D. a large

I ______ have been more than six years old when the accident happened.

A. shouldn’t        B. couldn’t       C. mustn’t         D. needn’t

 “Did Jim come？” “I don’t know. He _______ while I was out.”

    A. might have come     B. might come

    C. mush have come      D. should have come

 “I called you yesterday. A woman answered, but I didn’t recognize her voice.” “Oh, it _____ my aunt Jean.”

    A. must be                B. must have been

    C. might be               D. can have been

— It is rather cold here. Shall we light a fire?

  — No, we______because things are easy to catch fire.

  A. won’t             B. can’t               C. mustn’t               D. needn’t

Johnny, you_____play with the knife, you_____hurt yourself.

won’t/can’t        B.mustn’t/may      C.shouldn’t/must     D.can’t/shouldn’t

I _____ for five minutes； why don’t they come？

    A. am calling         B. Called   C. was calling        D. have been calling

Mike didn’t notice Alice entering his room. He ____ a phone call.

   A．answered     B. has answered     C. was answering      D. is answering

Unfortunately, when I dropped in, Doctor Li _____ for Beijing to join in the fight again H1N1, so we only had time for a few words.

  A. just left            B. has just left           C. is just leaving       D. was just leaving

—I’m sorry, I shouldn’t have been so rude to you.

  —You________ your temper but that’s OK.

A. have lost       B. had lost              C. did lose             D. were losing