[ Grammar ]
They cancelled all flights because of fog.
The passive form of the sentence above is, Because of fog, ….
A. all flights had cancelled
B. all flights were cancelled
C. all flights have been cancelled
D. they be cancelled

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Sentence and FragmentQuantifies and Modals of DeductionPresent, Past, Present Perfect and ComparativeTime ConjunctionsGrammar (Adverbs, Prepositions, Prepositional Phrases)Present Perfect vs Past SimplePronounciation and GrammarApologizingApostrophes and GrammarVerb-ing or to VerbOther quiz:
Grammar › ViewI don’t know why she bought that music system – she uses it ________________.
A. on red letter day
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They will buy the new iphone
A. if they write the report.
B. if the secretary makes coffee.
C. if they are on vacation.
D. if they have money.
