But for their help，we         the program in time.

A. can not finish            B. will not finish

C. had not finished          D. could not have finished

When a pencil is partly in a glass of water, it looks as if it ______.

    A. breaks                           B. has broken

    C. were broken                      D. had been broken

—Excuse me. But I want to use your computer to type a report.

—You _____have my computer if you don’t take care of it .

   A. shan’t    B. might not    C. needn’t     D. shouldn’t

—Any information about your son?

—No. If only I ______ those tough words to him.

A．didn't say                   B．hadn't said

C．shouldn't have said              D．couldn't have said

These plastic flowers look so _____ that many people think they are real,____they sell badly for the finanical crisis.

   A. beautiful ,and        B. natural ; while       C. artificial ; though    D. real; so

It’s not easy for the expert to ______ pig flu.in humans from regular human seasonal influenza.    

   A. distinguish          B. separate           C. identify           D. recognize

15. Sometimes we are asked _____ the likely result of an action will be.

A. that we think        B. what do we think

C. what we think       D. that what we think

I had decided to give it up ,but on _____second thoughts,I decided to try _____third time.

A.     不填;a  B.不填;the  C.the;the  D.the; a

1. In which play is _____ your brother appear?

A. that where  B. this when  C. it that  D. it where

Internet is a great tool if we know how to use it ,but it shouldn’t be a replacement for ______life.

A.     oringinal  B.real  C.natural  D.actual