Tokyo’sgovernmentwarnedthatthecity’swatersupplyhadbeen...

问题详情：

 Tokyo’s government warned that the city’s water supply had been polluted by radiation, _______ concerns about the impact on Japan’s food supplies.

A. widened                                                      B. widening

C. having widened                                     D. to widen

【回答】

解析：选B。句意：东京**告称，该市自来水已受到辐*污染，使人们更加担心核辐*对日本食物供应的影响。widening在此为现在分词作结果状语。

知识点：非谓语动词

题型：选择题