Grandma is ill. I have to ________ her at home.  
#62031
A
look for
B
look up
C
look at
D
look after
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 —Fire is very useful to human! —Yes, especially in winter a fire _____________warm.
#62971
A
used to keep
B
can be used to keep
C
is used to keeping
D
was used to keeping
- He's easily _______ by others.    - But he used to be so stubborn.
#58165
A
refused
B
affected
C
controlled
D
disturbed