【題目】Many wild animals are , and it's time for us to do whatever we can to protect them.
A.on duty
B.on show
C.in order
D.in danger

【答案】D
【解析】句意:許多的野生動物處于危險之中,那么對于我們來說到了做我們能做的事情來保護(hù)他們的時候了。A. on duty值班;B. on show在展出,在展覽;C. in order按順序;D. in danger處于危險之中。根據(jù)句意,故選D。

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