[ Modal Verbs ]
He ___ be at home; his car is in the driveway.
A. Might
B. Could
C. Should
D. Must

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Common Grammar Mistakes and Spelling TipsCompound Words and SentencesArticleObject PronounGrammar and SyntaxSubordination ConjunctionsGrammar - Capitalization and Possessive NounsPoetrySentence Structure and Grammar RulesGrammar & VocabOther quiz:
Gerund & To Infinitive › ViewThe airline passenger insisted on ………… to business class for extra comfort during the long flight.
A. being upgraded
B. upgrades
C. upgrading
D. to upgrade
Grammar › View
Tom and Ted drew a line _____ a ruler.
A. by
B. with
Simple Past vs Past Continuous Tense › ViewWe ——– television when the power went off.
A. were watching
B. watching
C. was watching
D. watched
Vocabulary › View
a tide with the least difference between consecutive high and low tides
A. tide
B. spring tide
C. neap tide
