根据句意及汉语提示，写出各单词的正确形式，每空填一词。
Both of us love all the old __________________(照相机) at the museum.
You must be ________________(疯狂的) to go walking in such awful weather
---We need to buy a couple of _____________(围巾) for the twins.
--- Ok, let’s go to the shop.
---How long have you _________________(收集) tea sets？
--- For thirty years.