1) Without ……… evidence to support their theory, the researchers didn’t feel confident publishing their study. a) tangible b) sentiment c) target d) scenario 2) a broken part or piece of something a) crucial b) reassemble c) frightening d) Fragment 3) Children learn to speak by ………. words and trying to sound like adults. a) revealing b) persisting c) imitating d) ignoring 4) enough for some need or requirement a) adequate b) incident c) intense d) insight 5) There were many……….. when it was clear that she could understand me, even though she never said anything directly. a) events b) incidents c) outburst d) sentiment 6) To develop new drugs, some drug makers have……… the knowledge that people of the Amazon have about native plants. a) persisted b) obliged c) targeted d) exploited 7) If we take the most negative view of the future, we can picture a disastrous…… a) incentive b) indigenous c) visualization d) scenario 8) To keep a) regain b) recovery c) reveal d) retain 9) in a dangerous position or situation and likely to be lost or harmed a) in the face of b) in jeopardy c) indigenous d) error-prone

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