[ Present Perfect Tense and Simple Past Tense ]
When do you use “yet” with Present Perfect tense?
A. In questions and negative sentences.
B. In affirmative a sentences.
C. In questions.
D. In negative and affirmative sentences.

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A. is-is
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Mow the lawn.
A. FALSE
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the theory that an increasing consumption of goods is economically desirable
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