1)____ up the trash on the street to make our city clean. A.picking   B.picks   C.pick   D.not pick 2)My mother___ bottles to grow plants in them. A.refill    B.reduce    C.recycle  D.reuse

1)____ up the trash on the street to make our city clean. A.picking   B.picks   C.pick   D.not pick 2)My mother___ bottles to grow plants in them. A.refill    B.reduce    C.recycle  D.reuse
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