[ Modals ]
He ___ be at the library now. I saw him go in a few minutes ago.
A. might
B. must
C. can
D. should
Select your answer:

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Grammar › ViewPO box stands ………………. “Post Office” box.
A. as
B. like
C. for
D. by
Grammar › View
What is the subject of this sentence:
The movement produces sound.
A. The movement
B. produces
C. movement
