第51页

信息发布者：
to visit
ights
themselves
teach himself English/learn English by himself
the support of my friends
I got to the final finally
learn about places of interest in China
look as beautiful as the real ones
He is a mountain climber.
Helpful.
To help scientists./To collect samples for scientists.
He should do something helpful while climbing./Doing something helpful is more important than climbing.
He is brave and helpful./He is hard-working and great.
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