Tokyo’sgovernmentwarnedthatthecity’swatersupplyhadbeen...

問題詳情：

 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：選B。句意：東京**告稱，該市自來水已受到輻*污染，使人們更加擔心核輻*對日本食物供應的影響。widening在此為現在分詞作結果狀語。

知識點：非謂語動詞

題型：選擇題