[ Grammar ]
I am sure David ________________ taken you books by mistake.
A. shouldn’t have
B. must have
C. couldn’t have
D. might have

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Comparatives and Past Perfect Tense › ViewThat is the …….. spelling word we have been assigned this week.
A. More difficult
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Tenses › View
Did you sleep well last night?
A. Simple Present Tense
B. Simple Past Tense
C. Present Perfect Tense
D. Future Tense of Be Going To