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We need to ______ after eating to have good teeth.

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may clean    must clean    need be cleaned    can be cleaned  
Sounds great    Never mind    With pleasure    Not surprisingly  
What’s more; sooner or later    As a result; now and then    After all; here and there    At the same time; more or less  
IN BADLY  BADLY IN NEED  URGENT IN NEED  IN URGENTLY NEED  
primary  alternative  instant  unique  
may clean    must clean    need be cleaned    can be cleaned  
while    after    before    as  
Must; needn’t; may    Must; mustn’t; can    Shall; can’t; must    Need; mustn’t; may  
take after  take off  take place  take out  
in badly need  badly in need  urgent in need  in urgently need  
that    what    which    where  
What’s more; sooner or later    As a result; now and then    At the same time; more or less    After all; here and there  
Must; needn’t; may    Must; mustn’t; can.    Shall; can’t; must    Need; mustn’t; may  
in badly  badly in need  urgent in need  in urgently need  
may clean  must clean   need be cleaned  can be cleaned  
Pneumonia.  Brain infection.  Over-population.  Over-eatin  
since    before    after    until  
while    after    before    as  

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