[ Grammar and Vocabulary ]
The word “__________” refers to all the animals living in a particular region.
A. flora
B. ecosystem
C. fauna
D. environment
Select your answer:

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Grammar › ViewA : I’m very worried.
B : Look, if she __________ by 9 o’clock, I’ll go out and look for her.
A. isn’t calling
B. hasn’t called
C. didn’t call
Grammar › View
Look out! You……………… the folders.
A. ‘re going to drop
B. ‘ll drop
