You'd better take something to read when you go to see the doctor ________ you have to wait.
[     ]
A．even if  
B．a(chǎn)s if
C．in case  
D．in order that
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You’d bett er have your room _____. It’s _______.

clean ;in mess             B. cleaned ; a mess  

cleaned ; in mess           D. clean ; in a mess

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