[ First vs Second Conditional Sentences ]
If they don’t listen, they ______ the instructions.
A. won’t understand
B. wouldn’t understand
C. don’t understand
D. didn’t understand

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Vocabulary › ViewThousands of acres of forest are being cut down every year and the ____ of many animals are being destroyed.
A. natural resources
B. natural habitats
C. ways of life
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John carried the injured bird __________ because he did not want to hurt it.
A. quickly
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Vocabulary › ViewThe character telling the story.
A. Narrator
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He doesn’t agree that Ronaldo is _______ than Messi.
A. best
B. better
C. very good
D. good
