1.

Choose the correct form of tense for the given sentence - Demining ............ the action of removing landmines, booby traps and unexploded bombs from an area so that once they ............ soldiers can pass over the area safely.

A. was, had removed
B. is being, are being removed
C. is, are removed
D. has been, has been removing
Answer» D. has been, has been removing


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