How long ___ before they realised they were going the wrong way?
A. they had been sailing
B. had they sailed
C. had they been sailing

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Correlative conjunctionsCoordinate Conjunctionand, so, but, becauseGRAMMAR - Could / Could notSimple Past Tense & Future TenseBe used to vs used toVerbal CommunicationIdentifying TensesLinking VerbsGerunds, Infinitives and ParticiplesOther quiz:
Grammar › ViewHow many sentences best revise this run-on?
Mrs. Rooney prefers to not wake up early in the morning she enjoys watching television late into the evening so getting up early is a challenge for her especially when she must teach her Wildcat students.
A. 1
B. 2
C. 3
D. 4
Grammar › View
Choose the word that best completes the sentence: The magician will ____________ from the trap.
A. fled
B. image
C. escape
D. newspaper
Grammar › View_____ me to email Danny. I need to give him directions to your house.
A. remind
B. remember
C. Notice
Grammar › View
We use Past Perfect for?
A. something that happened again and again.
B. for something that started in the past and continued up to a given time in the past.
C. something that happened once in the past