[ Modal Verb ]
His letter is full of mistakes. He _____ the mistakes carefully before sending it.
A. must have checked
B. should have checked
C. could have checked
D. can have checked

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Formal & Informal WordsPast Continuous Tense & Past ModalsAdjectives with PrepositionAdverbs (manners & modifiers)Distinguishing Future TensesAdjectives & QuantifiersVerb Tenses and Subject Verb AgreementPronounciation and GrammarGrammar ClausesNarrative TensesOther quiz:
Grammar › ViewLondon is __________(busy) Glasgow.
A. more busy than
B. busier than
Grammar › View
Which sentence is correct?
A. The stars are bright shining.
B. The stars bright are shining.
C. The bright stars are shining.
D. The bright are stars shining.
