【題目】The tiger is now in danger of disappearing. So more attention ____ to protecting the tiger.

A. paid B. must pay

C. was paid D. must be paid

【答案】D

【解析】試題分析：句意：老虎現(xiàn)在有消失的危險(xiǎn)。所以必須更多關(guān)注保護(hù)老虎。根據(jù)句意及題干分析此空應(yīng)用被動(dòng)語態(tài)，其基本結(jié)構(gòu)是be+動(dòng)詞的過去分詞，答案C只是指過去關(guān)注，所以排除，故選D。

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