[ Subject-Verb Agreement ]
He is tired because he had been ____ (sing) for hours.
A. Sings
B. Sang
C. Sing
D. Singing

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A. won’t you
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My mother talked to me yesterday, but I didn’t tell … that I was sick.
A. I
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These big books shouldn’t be taken ___ from the library.
a. after
b. in
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