阅读短文 ，然后用括号中所给词的适当形式填空。
In Seoul, there is a technology museum, it gives people some 1 (idea) about what our life will
be like in the future.
The museum has 2 (second) parts, "Dream" and "Play". The former (前者) is about how
technology will be used in everyday life in the near future, and the latter(后者) shows the recent
technologies being used today.
In the museum, we can see 3 (clear ) that our life in the future will be fantastic. The walls in our
house will be one big screen. Nowadays, it 4 (take) a lot of time to change the wallpaper of our
house. In the future, all it will take is moving our arms. 5 (Our) only need to sweep the wall and
the "wallpaper" will change to a 6 ( difference ) picture immediately.