The _______ brought out a specimen box and showed the items one by one.
（A）ecologist
（B）zoologist
（C）biologist
（D）botanist
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- 1The ( ) always ask us to stay for lunch.(villager的适当形式)
- 2Under no ______ will I go there again.
- 3Nobody knows why ______ are disappearing, dolphins are dying and coral is turning white.
- 4What are the _______ farm products in this region?
- 5We are leaving this afternoon, but we have not _______ our suitcases yet.
- 6Correct decisions _______ from correct judgments.
