Grammar Quiz

[ Vocabulary ]

A biological community of interacting organisms and their physical environment

A. oxygen

B. boreal

C. biodiversity

D. ecosystem

Select your answer:
         


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Vocabulary › View

thrilled, overjoyed

A. eloted

B. elated

C. elatted

D. ellated


Tenses › View

Choose the correct past tense form of the verb for the sentence: “All of us ______ hard for the physics exam.”

A. studied

B. study

C. will study

D. studying


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