急,选择所给单词并选择其合适的形式填空!

急,选择所给单词并选择其合适的形式填空!
（1） different like against oppose distinguish
1.As we know,chemical changes are greatly ( ) fromphysical changes.
2.How can we( ) one compound from another?
3.Iron ( ) rubber is a good conductor of electriccurrent.
4.Each protoncarries a unit positive charge ( ) a unit negative charge of an electron.
5.( ) kinds of matter have ( ) properties.
（2） Dimension foul readily economical entrance
1.These problemsare not ( ) soluble.
2.I was ( ) with the music.
3.The smoke ( ) the air.
4.What are the( ) of the box?
5.She is an ( ) housewife.
（3） dozen variable analysis couple creative
1.Do you want to( ) this file now?
2.Load the ( ) names and their types.
3.She bought ( ) dresses.
4.He ( ) the various factors.
5.They walked a( ) of miles.