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483. I saw Jane and her boyfriend in the park at eight yesterday evening.
Impossible. She _____ TV with me in my home then.
A.watched
B.had watched
C.would watch
D.was watching
484.Have you handed in your schoolwork yet?
Yes,I have.I guess it _________ now.
A.has graded
B.is graded
C.is being graded
D.is grading
