CarscausemostofBeijing’sairpollution.Sothe“NoCarDay”cam...

問題詳情：

Cars cause most of Beijing’s air pollution. So the “No Car Day”campaign（活動）asks Beijing drivers          their cars at home one day each month.

e                 ing               leave

【回答】

C

知識點：非謂語動詞

題型：選擇題