[ Subject Verb Agreement ]
One group of researchers ___ studying about the source of Covid-19.
A. is
B. are
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Passive and Active VoiceConditional Sentences and Adverbs-ed or -ingGerund - to Infinitive DeterminersInfinitives and GerundsPronouns/ Present TenseCoherent Sentence with Correct Grammar StructureGrammar - Present Perfect with for and sinceRegular Plural NounsOther quiz:
Subject Verb Agreement › ViewMark ___ a rosebush in the pot.
A. grow
B. grows
C. growing
D. grown
Mixed General Quiz › View
The average ___ temperature of Salt Lake City in February is about 44 degrees Farenheit or about 7 degrees centigrade.
a. higher
b. highest
c. high
Identify the conjunction in the sentence.
He can buy the book, or he can borrow it from the library.
A. can
B. or
C. the
Vocabulary › View
The opposite of motivate is
A. cure
B. discourage
C. cheer up