[ Tenses of Verbs ]
The doctor _______________ a critical operation right now.
A. has been performing
B. was performing
C. is performing

Random Topics:
ProverbsComparative AdverbPresent / Future / Present Progressive / non Action VerbsLexico and GrammarModals and Present TensesGrammar - Sentence StructureTime and CalendarWill vs Verb InfinitivesSo Such Enough TooWill vs be going toOther quiz:
Prepositions › ViewYou have to leave your shoes ______________the door when you enter the house.
A. In
B. Over
C. To
D. By
Grammar › View
I will have anything to eat _____ for tomatoes!
A. accept
B. except
Vocabulary › ViewThe government is working on policies to reduce the use of ___ and promote recycling.
A. carbon footprint
B. single-use plastics
C. compost
D. language barriers
Tenses (Present and Past) › View
A man wearing sunglasses got out of the car and ———— : ‘Mike, what are you doing here?’
A. says
B. is saying
C. said
D. was saying
