Will begin
A. from
7. Tree leaves
8.
A. should used
C. should be used
In order to
a brief discussion of the problems.
C. at
B. with
A. was
12. It's important
A. collect
11. In 1876, the telephone
to wrap things.
A. Compost
is a wonderful natural fertilizer.
B. Plastic
9. Glass is broken up, melted and made into new
B. hardware
A. silverware
10. Is the rubbish
every day?
B. collecting
B. is
B. should been used
D. should be use
C. Envelope
C. ironware
D so that
wildlife in the area.
D. on
D. Garbage
D. glassware
C. collected
first introduced by Bell and Watson.
C. has been
D. be collected
D. had been