Doyouknow        PM2.5,children? A.howshouldwedealwith...

問題詳情：

 Do you know         PM 2.5, children?

 A. how should we deal with                B. how to do with

C. how to deal with                             D. what to deal with

【回答】

C

知識點：非謂語動詞

題型：選擇題