1. We are now very poor and we can only afford ________ (二手的)furniture.
2. As far as the present situations are ________ (担心的，关心的), it is very difficult for you to avoid being accused of drunk-driving.
3. Peter has just come back from traveling to Hawaii with his family; he has spent an ________ (使人快乐的) summer vacation.
4. Considering the current situation, we must have clear ________ (意识).
