[ Conditionals and Modal Verbs ]
Fill in the blank: They ___ have arrived by now; their flight was on time.
A. might
B. would
C. should
D. could
Select your answer:

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Grammar › ViewLast week, my teacher _____ us many English words
A. taught
B. is teaching
C. teached
D. learned
Tenses › View
My sister and I _____________ (sit) in the living room when suddenly the door ___________ (open) and our cousin __________ (appear). We were very excited to see him.
A. were sitting / opened / appeared
B. have been sitting / have opened / appeared
C. sat / opened / has appeared
D. have sat / have opened / has appeared