FRIENDS PLUS 7 - WORD FORM HKII - 3

Salsa and Samba are two types of (a)   music. (tradition)

The (a)   of the piano and violin changed the sounds of classical music.   (invent)

The Dan Bau is a Viet Nam traditional (a)   instrument. (music)

I don’t like pop music because it is not as (a)   as rock and roll. (excite)

I think that good knowledge of arts and music is a (a)   for anyone.                    (necessary)

Solar energy is renewable,        (a)   and clean. (plenty)

We should reduce the use of (a)   at home. (electric)

Waves will be used as an (a)   friendly source of energy. (environment)

Solar power can be used to (a)   or cool our house. (hot)

There will be a (a)   of energy in the near future. (short)