[ Grammar ]
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
Select your answer:
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Article › ViewFill in the blank with the correct article: “___ stars are visible tonight.”
A. a
B. an
C. the
D. no article
Grammar › View
Don’t go in the building. Wait for me ________ of the school.
A. over
B. in front of
C. for
D. in