A.to award | B.to be awarded |
C.to have been awarded | D.to be awarding |
A.for people to communicate | B.for people communicating |
C.for people communicate | D.for people to be communicated |
A.compared with | B.comparing to | C.compare to | D.comparing with |
A.to leave alone | B.left alone | C.to be left alone | D.being left alone |
A.cleaning up | B.being cleaned up | C.to clean up | D.clean up |
A.He has worked | B.Having worked |
C.He has been working | D.Working |
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