[ a, an, the, Zero Article ]
Audience
A. An
B. A

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Vocabulary and Grammar › Viewthe remaining earnings after deducting expenses except for tax
A. profit margin
B. Net profit
C. pre-tax profit
D. Net profit margin
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I’d ___________ play tennis than play golf.
A. get into
B. rather
C. be eager to
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A. thiner than
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What is the subject of this sentence:
Hummingbirds beat their wings 60 times a second.
A. Hummingbirds
B. Hummingbirds beat
C. beat their wings
