[ Prepositions of Time ]
My plane was supposed to leave __ 7:07 P.M., but it didn’t take off until 8.30.
A. in
B. on
C. at
D. of

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Asking and Giving OpinionInfinitive and GerundsPresent and Past TenseSecond ConditionalSentence Types and ConjunctionsConditional SentenceGrammar Mistakes-ing form and the to-infinitivePresent Simple/AffirmativeStative Verbs and TensesOther quiz:
Grammar › ViewJohn_______his driving test.
A. passed
B. made
C. succeded
Grammar › View
The staff _______ ___________ ___________ lunch for the special guests since 8 a.m.
A. had been preparing
B. must have prepared
C. would have prepared
D. could have been preparing
