[ Auxiliary Verbs, if, unless and Modal ]
They __ been waiting for the bus for an hour.
A. will
B. has
C. is
D. have
Select your answer:
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Past Tenses › ViewI have … watched this film. I watched it last week with my father.
A. yet
B. already
C. ever
D. so far
Conditional Sentence Type 0-3 › View
I would never lend to you if I … (know) before.
A. know
B. knows
C. knew
D. had known
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