[ Grammar ]
What is the simple predicate in the sentence below?
Sedimentary rocks form on the bottom of seas.
A. Sedimentary
B. rocks
C. form
D. bottom
Select your answer:

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Grammar › ViewSusan ______________________ (do) her homework.
A. was doings
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C. does does
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Choose the correct form of the verb: I _______ down on the bed.
A. lie
B. lying
C. laid
D. lay
