[ Intermediate Prepositions ]
she is an expert _____ science and technology
A. on
B. in
C. at
D. –
Select your answer:
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Subject Verb Agreement › ViewHere (is, are) the garden chairs for your party.
A. is
B. are
Grammar & Vocabulary › View
The school has started a campaign to promote ______ living habits among students.
A. green
B. clean
C. smart
D. slow