[ Modal Verbs ]
I ___ finish my homework; otherwise, i will get a bad grade.
A. Should
B. Have to
C. Ought to
D. Can
Select your answer:

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Grammar › ViewListen! A siren is ………………. .
A. splashing
B. wailing
C. crashing
D. barking
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There was plenty of snow outside. It … all night.
A. has been snowing
B. had been snowing
C. had snwed
