[ Present Perfect Tense ]
Change to present perfect tense .( no 1-8)
You have …… overnight
A. sleep
B. sleeping
C. slept
D. sleeps
E. to sleeping

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A. and
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C. so
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Did you know that a train came off the ………………… yesterday?
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A. before
B. when
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_____ you please open the window?
A. Should
B. Would
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