______is forbidden in the meeting-room, but we are allowed in the room for smokers.
- A Smoking, smoking
- B Smoking, to smoke
- C To smoke, smoking
- D To smoke, to smoke
搜答案，更轻松！
______is forbidden in the meeting-room, but we are allowed in the room for smokers.
20．答案为B 参考译文：在会议室里禁止吸烟，但在这间吸烟室里允许我们抽烟。第一个空是考查动名词作主语，意思是一般的泛指抽象的“吸烟”概念。第二个空是不定式作主语补语，意思是特定的和具体的“抽烟”的动作。