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They took a research trip.
At the10 caverns of the Mogao Grottoes.
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635./Six hundred and thirty-five.
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free
shines
heroes
cultures
pulling
yourselves
helpless
to bring
more cheerful
Luckily
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This film is not as/so interesting as that one.
The students couldn't wait to get on the bus.
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It offered students first-hand information for their research and encouraged them to question some of their past ideas.
Truth comes from asking questions and doing researches.(言之有理即可)
I couldn't believe my eyes when I saw so many colourful flowers.
I want to learn how to make a kite by myself./I want to teach myself how to make a kite.
The fina1 (competition) will take place at your school next Friday.