A.is constructing | B.were constructing |
C.is being constructed | D.were being constructed |
A.polluted | B.having polluted |
C.being polluted | D.having been polluted |
A.to be caught; to break away | B.being caught; breaking away |
C.to be caught; broke away | D.being caught; broke away |
A.caught | B.took | C.held | D.Keep |
A.Facing with; related | B.Faced; relating to |
C.Faced with; relating | D.Facing; related to |
A.for leaving; out | B.to leave; alone |
C.for leaving; alone | D.to leave; out |
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