1．These doors are made in pieces that can be __folded__ (折叠) away against the wall.
2．A __quarrel__ (争吵) is an angry argument between people, often about a personal matter.
3．There is no __possibility__ (可能性) that he will accomplish that work on his own.
4．According to his __description__ (描述), the scenery of the mountain is beautiful.
5．When asked about happiness, we usually think of something extraordinary, an absolute __delight__ (乐事)，which seems to get rarer when we get older.
6．Because they are very much __alike__ (相像的)，people are always mistaking him for his twin brother.
