[ Subject Verb Agreement ]
One group of researchers ___ studying about the source of Covid-19.
A. is
B. are
Select your answer:
Random Topics:
Mixed Present TensesWish SentencesGerundMaritime Vocabulary and GrammarRelative & Interrogative PronounsProgressive TenseVerb ConjugationGrammar - Collective NounsPositive and Negative ConnotationsConditionals and Modal VerbsOther quiz:
Grammar › ViewGilbert is of firm beliefs that his village has to _____itself on order to adapt to the fast-paced of change.
A. modern
B. modernisation
C. modernise
D. modernised
Prepositions of Time › View
She usually goes to work _________ 9am.
A. at
B. on
C. in