The answer would be letter D. The active voice states the doer of the action, the action and the receiver of the action.
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The answer is (C), becuse the reader does not now was is threatening the characters lives. In the other answers it told "it" was thereatening their lifes. This is why (c) has the sentence fragment.
Answer:
LOC. Michael closed his office door to take the call from Chandra.
Explanation:
This sentence shows Micheal didn’t want anyone else overhearing their conversation so he was being DISCREET.
Answer:
Keep both hands firmly on the wheel when you pass a large vehicle or when a large vehicle passes you. Don't speed up when a semi-truck or other large vehicle is passing you. Instead, stay to the right and slow down slightly.