11、You look　　　you haven’t eaten for a week．
A． though   
B． so that   
C． while
D． as if
12、　　　it was raining very hard，we would like to have gone to the park．
A． If   
B． Whether   
C． Even though
D． As though
13、You may borrow this book　　　you promise to give it back．
A． in case   
B． so long as   
C． as if
D． even if
14、 Mary has just called and asked __ to have lunch with her tomorrow.
A． you and I      
B． you and me     
C． I and you       
D． me and you
15、 Be quick, __ you'll miss the early bus.
A． and   
B． so 
C． but
D． or
16、 The doctors tried their best to save the patient's life, __ failed.
A． or
B． so
C． but
D． because
17、For a person with reading habits，a printed page contains not only words 　　　ideas．thoughts
and feelings．   
A． yet   
B． and   
C． or
D． but
18、__________he comes, we won't be able to go．
A． Except    
B． Unless   
C． Without   
D． Even
19、I’m not leaving　　　I get an apology from you．
A． so that   
B． as long as   
C． while
D． until
20、Everything depends on　　　we get a raise in our salary．
A． what   
B． that   
C． if
D． whether

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