—John,Icalledyouyesterdaymorning,butnobodyansweredtheph...

問題詳情：

— John, I called you yesterday morning, but nobody answered the phone.

   — Oh, I _________basketball at that time.

   A. play     B. playing     C. was playing

【回答】

C

知識點：動詞時態

題型：選擇題