ACTIVE
In
eighteen
teen
peter
dunkan
invented
the
can
to
preserve
the
food
PASSIVE
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Present
Perfect
I
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to
Tokyo
.
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you
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your
room
yet
?
First
Conditional
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it
rains
today
,
I'll
stay
at
home
.
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he
is
busy
now
,
I
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come
back
tomorro
w