1.trees
are
planted
by
us
every
years.
2.she
was
chosed
to
be
the
monitor.
3.the
children
were
told
not
to
spend
too
much
time
on
computer
games.
4.the
boy
was
often
heard
to
sing
in
his
room.(提醒你一下，感官动词，联系动词，使抑动词当中主动态省略掉的TO变被动式一定要加上）
5.i
was
bought
a
new
walkman
5.a
new
walkman
was
bought
by
my
parents.
1、Trees
are
planted
here
every
year.(every后应放单数名词的，好像你写错了吧？)
2、She
was
chosen
to
be
the
monitor.
3、The
children
were
told
not
to
spend
too
much
time
on
computer
games.
4、The
boy
was
often
heard
singing
in
his
room.
5、I
was
given
a
new
walkman.
A
new
walkman
was
bought
for
me.
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