[ Modal Verbs of Certainty and Possibility ]
He _____ studying because I didn’t see him outside.
A. can have been
B. must have been
Select your answer:
Random Topics:
Grammar and VocabulariesFuture SimplePast Tense & Past Continuous TenseCommon Grammar Mistakes and Spelling TipsArticles and NounsAdjective and AdverbRegular and Irregular VerbsAdverb of FrequencyToeic VerbUncountable NounsOther quiz:
Grammar › ViewWhat is the plural of scarf?
A. scarfs
B. scarfes
C. scarves
Common & Proper Nouns › View
Which one is a proper noun?
A. city
B. state
C. Indianapolis, Indiana
D. names