1. I
2. The old book can
3. His toy car
4. We must learn how to
5. Please don't

made friends with
a girl in the school recycling club yesterday.2. The old book can
go to sleep
in the recycling machine.3. His toy car
is made of
some cardboard and bottle caps(瓶盖).4. We must learn how to
do with
our rubbish in smart ways.5. Please don't
throw away
these old newspapers. We can recycle them.答案
1. made friends with
2. go to sleep
3. is made of
4. do with
5. throw away
2. go to sleep
3. is made of
4. do with
5. throw away
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