[ Sentence Transformation ]
I am pretty sure Dan is at home because the lights are on
A. Dan may be at home because the lights are on
B. Dan needn’t be at home because the lights are on.
C. Dan can’t be at home because the lights are on
D. Dan must be at home because the lights are on

Random Topics:
Grammar - Present Perfectlike/do not likeComparison of Adjective and AdverbSuch...that, so ......thatPresent Simple and Present ContinuousPrepositions of Place and TimePronouns and AdverbsPast Perfect Simple TenseSentence CompletionPast Simple TensesOther quiz:
Grammar › ViewWhat kind of sentence?
Mary bought a gift for her mom, and the store clerk gift wrapped it.
A. simple
B. complex
C. compound
Grammar › View
What school ______he go to?
A. did
B. doesn’t
C. does
D. are