Coal is hard, like a rock and yet it burns, while no rocks ______.
#81373
A
do
B
does
C
are
D
is
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 He has three part­time jobs, which ________ about $14 000 a year.
#64285
A
call for
B
bring in
C
make up
D
turn out
Please ___ your new watch, or you’ll get it lost.
#80882
A
look for
B
look after
C
look up
D
look through