[ Past Tenses ]
The past perfect continuous tense emphasizes:
A. The result of an action
B. The exact time of an action
C. The duration of an action
D. A future plan

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A. is
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Could you be so kind as to turn off … light?
A. a
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Grammar › ViewHe …. if I had not reminded him.
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A group of boys ——–playing in the ground.
A. was
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