—Have you finished your homework yet?—Yes. I _________ it twenty minutes ago.
#52118
A
have finished
B
finished
C
will finish
D
had finished
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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
Amy ______after school every day.
#59390
A
walks to home
B
walks home
C
walk home
D
walk to home