[ Adverb Clauses ]
_______, we will be able to leave for the airport.
A. Before the taxi arrived
B. After the taxi had arrived
C. While the taxi was arriving
D. As soon as the taxi arrives

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Tenses StructureModal RequestsWish + Verb 2Grammar-Verbs & Nouns Singular, Plural, GenderGrammar & ReadingPhrasal Verbs and Verb FormsQuantifiers and AdjectivesParticiple Clauses & Cleft SentencesBe going to / WillQuantifies and Modals of DeductionOther quiz:
Present Perfect Tense › ViewEvans, Thomas and Roger ………………. to Korea many times.
A. have been
B. been
C. has been
Aptitude : Problems on Trains › View
A train travelling at a speed of 75 mph enters a tunnel 3 1/2 miles long. The train is 1/4 mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges?
A. 2.5 min
B. 3 min
C. 3.2 min
D. 3.5 min