5.Compost is a wonderful natural ______.
(1 Điểm)
fertilizer
product
chemical
6.Farmers collect household and garden waste to make ________.
(1 Điểm)
compost
floor coverings
pipes
7.What is the best place ______ a compost heap?
(1 Điểm)
at
in
for
8.Can we use old car tires ______ shoes and sandals?
(1 Điểm)
make
to make
making
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