[ Grammar ]
When a fire burns red or green or blue, the color of its flames ______ the chemical composition of the combustible material.
Which choice completes the text so that it conforms to the conventions of Standard English?
A. indicate
B. indicates
C. have indicated
D. are indicating

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A. tidied
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Grammar › View
What is predicate?
A. Part that contains the action.
B. The person or thing that is doing an action, or the person or thing that is the focus of the sentence.
C. Both of the above.
