Up to now, our society ________ with limited living space and a shortage of natural resources.

Ahas been challenged Bis being challenged

Cis challenging Dhas challenged

 

A

【解析】A 考察動(dòng)詞時(shí)態(tài)和語態(tài)。句義:到目前為止,我們的社會(huì)一直面試著生存生成空間有限和自然資源匱乏的挑戰(zhàn)。Sb/sth be challenged with sth意為“某人/某物面臨著挑戰(zhàn)”,為習(xí)慣用法;根據(jù)時(shí)間狀語up to now可知,應(yīng)用現(xiàn)在完成時(shí)。故A正確。

 

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