David’scousinbecameasoldierin

問題詳情：

David’s cousin became a soldier in _________. He was in ________ at that time. A. 1990’s; twenties                             B. the 1990’s; his twenties C. the 1990’s; the twenties                  D. 1990’s; the twenties

【回答】

B

知識點：數詞

題型：選擇題