Thevolunteers 國語站 題庫 2.68W 大中小設置文字大小 問題詳情: The volunteers ________ a lot of help to the old and the young since 2010.A. offered B. have offered C. are offering D. will offer【回答】B知識點:動詞時態題型:選擇題 TAG標籤:Thevolunteers #