______totheInternet,asmanyadolescentsdo,willtosomeexten...

問題詳情：

______to the Internet ,as many adolescents do ,will to some extent have a negative effect on their mental and physical health .

   A. Having been addicted    B. being addicted  C. Addicted  D. To be addicted

【回答】

D

知識點：非謂語動詞

題型：選擇題