NEW SOURCES OF ENERGY ARE CONSTANTLY BEING LOOKED FOR _______.A....

79. - DE THI THU DH THAN KHAO CO DAP AN
Tiếng Anh DE THI THU DH THAN KHAO CO DAP AN
79. New sources of energy are constantly being looked for _______.A. although fossil fuels continue to dwindle B. as fossil fuels continue to dwindleC. so that we continue to reduce fossil fuels D. fossil fuels continuing to dwindle