Iwonderwhatdifficultyhehad 國語站 題庫 1.15W 大中小設置文字大小 問題詳情: I wonder what difficulty he had ______ the project.A. carrying out B. to carry out C. carried out D. to be carried out【回答】A知識點:非謂語動詞題型:選擇題 TAG標籤:#