He isn’t a man who knows _____ to deal with people properly, but he does know _____ to do with all kinds of papers in front of him.
#37760
A
what, what
B
what, how
C
how, what
D
how, how
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Many people are wondering ________.  
#37229
A
whether is the meat from the lab bad for their health
B
whether the meat from the lab is bad for their health
C
whether is bad for their health the meat from the lab
D
whether from the lab the meat is bad for their health
— The man _________ was a friends of mine.
#36669
A
you just talked
B
whom you just talked to
C
who you just talked to him
D
which you just talked to
I don’t know________.Because he has to look after his mother.
#37799
A
why he is leaving
B
why is he leaving
C
whether he is leaving
D
whether is he leaving