(2013·哈尔滨四校高三统一检测)Look! There are so many mistakes in your composition. You ________ have fixed full attention on it.
#86572
A
can
B
should
C
need
D
might
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---The book is borrowed from the library. You ____ your children touch it with their dirty hands. ---Sorry.    
#88042
A
should have let 
B
needn’t have let 
C
mustn’t have let
D
ought not to have let
If it ______ tomorrow, our picnic _______ to be put off. 
#87486
A
rains;wouldhave
B
shouldrain;wouldhave
C
rains;has
D
wouldrain;wouldhave
At last he       finish the work ahead of time.
#89655
A
could
B
was able to
C
could have done
D
would have been able to
There were already five people in the car but they managed to take me as well . It ____ a comfortable journey . 
#89751
A
can''t e
B
shouldn''t be
C
mustn''t have been
D
couldn''t have been