A.polluting | B.being polluted | C.polluted | D.pollute |
A.which based on | B.based on | C.basing on | D.being based on |
A.doubled | B.to double | C.doubling | D.having doubled |
A.being aimed at | B.aimed at | C.having aimed at | D.having been aimed at |
A.seating, at no time | B.seated, in no time |
C.seated, at no time | D.seating, in no time |
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