Topics: Indefinite Pronouns
_________ is knocking on the door. Could you see who it is?
A. somebody
B. anybody
C. nobody
Select your answer:

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Prepositions › ViewHe is totally absorbed ___ her voice
A. on
B. at
C. in
D. about
Modal Verbs › View
She ______ drink coca cola.
A. must
B. mustn´t
