Topics: Grammar - Future
A: ” Someone is knocking on the door.”
B: ” I …….. (open).”
A. will open
B. is opening
C. is going to open
D. open
Select your answer:

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Grammar: so and suchPresent Perfect Negative and InterrogativeConjunctions and PrepositionsZero Conditional SentenceActive-Passive VoicesAdjectives and PronounsGrammar - Present Perfect with for and sinceConjunctions, Interjections and Sentence TypePrepositions after VerbsModal "Have to"Other quiz:
Modal Verbs › View_____ you mind if I open the window?
A. Can
B. Must
C. Could
D. Will
Grammar › View
_____ my homework when my mother came.
A. already did
B. have already done
C. has already done
D. had already done
