（1）One
day
i
came
across
my
old
ffriend
on
the
street.一天我在街上偶然碰见我的同学（2）I
intend
to
go
to
shanghai
to
see
my
brother
.我打算去上海看我的哥哥（3）I
pick
out
200yuan
by
chance
yestoday
.我昨天走运拾了200元（4）Many
workers
carry
on
doing
their
work许多工人还在继续做
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