[ Coordinating Conjunction ]
Is she being serious, ___ making a joke?
A. or
B. but

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Grammar › ViewWhen I am in the park, I really enjoy watching the children ____ on the grass.
A. to play
B. to be playing
C. playing
D. are playing
Use of Prepositions or Conjunctions › View
Government should prevent smugglers ___ their contraband.
A. to sell
B. to be selling
C. from selling
D. having sold