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1a-1e
SectionB
Unit 5. What are the shirts made of ?
Hey ,I am your old friend. I am present participle . Do you remember me?
looking
working
eating
sleeping
I am
past participle.
looked
worked
eaten
slept
Old friends
现在分词
过去分词
pick live pack
study cry try
cut put read
sing swim grow
take write drive
picked
lived
packed
studied
cried
tried