AT TIMES, THIS CAN BE RISKY, AND THE KEEPERS HAVE BEEN INJURED AND ONE HAS BEEN KILLED

SACH BT ANH 10 CO DAP AN

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10/ At times, this can be risky, and the keepers have been injured and one has been killed.

A. good B. useful C. healthy D. secure

V/ Choose the best answer A, B, C or D for each sentence: