Wewilldebatethesubject
問題詳情：
We will debate the subject ______ later when we have enough time.
A. in vain B. at length C. at last D. in force
【回答】
B
知識點：介詞
題型：選擇題
問題詳情：
We will debate the subject ______ later when we have enough time.
A. in vain B. at length C. at last D. in force
【回答】
B
知識點：介詞
題型：選擇題
