Thismachineneeds onceayearinordertoworkprope... 國語站 題庫 1.51W 大中小設置文字大小 問題詳情：This machine needs once a year in order to work properly. A. to check B. checking C. check D. checked【回答】B知識點：相似 相近詞比較題型：選擇題 TAG標籤：Thismachineneeds #
