(A) pollute
(B) pollutes
(C) polluted
(D) polluting
4.— Did you have anyone ______the trees?—Yes,l had the trees ______.A. to water ;waterB. to water; wateredC. water ; to be wateredD. water; watered
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The children enjoyed______ (they) in the.river
42________A.helpB.exicultC.restD.water
It’s dangerous to swim in a ________ river.A、roughB、roughingC、calmD、roughed
Man cannot live without______ water.A. aB. theC. anD. /
He found me very dull.A: lazy B: boring C: sleepy D: dirty
Dirty 是指干净的房间。