A.would help | B.had helped |
C.was helping | D.have been helping |
A.has been done;be cut down |
B.has done;cutting down |
C.has been done;being cut down |
D.had done;from being cut down |
A.used to keep |
B.used to be used for keeping |
C.was used to keeping |
D.used to be used to keeping |
A.drew | B.draw |
C.will draw | D.had drawn |
A.made | B.has been made | C.being made | D.to be made |
A.had gone | B.are going |
C.have gone | D.went |
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