[ Vocabulary and Grammar ]
Are they ____ observation?
A. being
B. in
C. over
D. under
Select your answer:
Random Topics:
Word FormationUncountable NounsHas Got & Have GotPassive Modals in Different TensesModal RequestsProgressive TenseComparatives and SuperlativesPrepotitionsIn/On/At + Time
Other quiz:
Modal Verbs › ViewHe _____ swim when he was five years old.
A. can
B. could
C. will
D. should
Grammar › View
_____ Amy ________ badminton today?
A. Are, playing
B. Is, playing
C. Has, played
D. Will, play
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