__________ her mother, Han Meimei entered the house, _________ by her sister.

A. Follow , following                 B. To follow , following   

C. Followed, following                D. Following, followed       

 I first met Mr. Smith in America. He ________ at Stanford University then.

A. studied            B. had studied        C. was studying   D. is studying  

_______ in Beijing University or Tsinghua University is ______ most students wish for.

A. Educated, what                   B. Being educated, what  

C. Educating, that                    D. To educate ,that

 Eighty percent of the work ______ to be done at school. Many a student ______ it is too much for them.

A. is, think         B. is , thinks      C. are, think      D. are, thinks

-- What’s the matter with you?

-- _________ the window, my finger was cut unexpectedly.　

A. While I was cleaning　　　　　　 B. While cleaning 　

C. Cleaning　　　　　　　　　　　 D. To clean　

 I would never speak to someone like that ________ they said something unpleasant to me.

    A. as if                    B. so that              C. even if              D. ever since  

 It was in the lab ______was in the charge of Professor Smith ______they carried out the experiment.

   A. which；where   B. where；that     C. that；where   D. which；that

 The doctor advised Lisa strongly that she ______ a holiday but _______ didn’t help.

A. should take, which                B. could take, which    

C. might take, what                  D. take, it        

 AIDS control and prevention is a _________ to China as well as the whole world.

A. surprise        B. challenge       C. threat        D. reaction

 His eyes stare at _____ is left of the brother’s dinner on the table.

A. which         B. what           C. that          D. where