問題詳情:
I am sorry ______ written you a letter at the time. A. to have not B. to not have C. not to have D. not having
【回答】
C
知識點:非謂語動詞
題型:選擇題
問題詳情:
I am sorry ______ written you a letter at the time. A. to have not B. to not have C. not to have D. not having
【回答】
C
知識點:非謂語動詞
題型:選擇題