PEOPLE LIVING IN RURAL AREAS SHOULD NOT USE BIOGAS BECAUSE IT IS.....

09. - 6 MÃ ĐỀ AV HK 2 12CB
6 MÃ ĐỀ AV HK 2 12CB

09.

People living in rural areas should not use biogas because it is...

A.

unavailable

B.

cheap

C.

harmful

D.

expensive