[ Grammar ]
Doctors say that ________ is bad for you.
A. smoke
B. to smoke
C. smoking
D. smoked
Select your answer:

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Grammar › ViewStudents usually have a____each year.
A. 3-months vacation
B. 3-month vacations
C. 3-month vacation
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Grammar › View
What is the simple predicate in the following sentence?
She is very smart.
A. she
B. is
C. very smart
D. is smart
