[ Vocabulary ]
A biological community of interacting organisms and their physical environment
A. oxygen
B. boreal
C. biodiversity
D. ecosystem
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Grammar › ViewWhat does it mean?
You shouldn’t have made him think there’s something special going on.
___
A. I made him think that way.
B. I didn’t make him think that way.
Past Participles › View
What’s the past participle of the verb|: know
A. knowed
B. know
C. known