1 . The museum __________ of three parts, one for architecture, one for painting collections and another for statues.

2 . You must keep your ________ if you promised to take the children to the cinema.

3 . Dark thoughts about your physical appearance can ________ over you all the time like a rain cloud. （用适当的词填空）

4 . See, your computer has broken ________ again! It doesn’t make sense to buy the cheapest brand of computer just to save a few dollars. （用适当的词填空）