[ Grammar Comma Usage ]
. Which sentence correctly uses commas in a list?
A. Clams shrimp and crabs all live on the seafloor.
B. My list of nightly chores includes washing the dishes cleaning my room and doing my homework.
C. Clams, shrimp, and crabs, all live on the seafloor.
D. My list of nightly chores includes washing the dishes, cleaning my room, and doing my homework.
Select your answer:

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Simple Past vs Past Continuous TenseCoordinating ConjunctionsTenses StructureModal Verbs and ConjunctionsPresent Progressive or Present SimpleModals AuxiliaryGerunds + To InfinitiveAdverbial Clause / If / ComparativesPerfect Verb Tensesmust/shouldOther quiz:
Grammar › ViewIf we had arrived at 10, we ______________ Santo’s grammar presentation.
A. attend
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On the sun deck, there— several chairs and a table.
A. was
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C. is
D. all of the above
