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

45. - DE THI THU DAI HOC MON ANH VA DAP AN
Tiếng Anh DE THI THU DAI HOC MON ANH VA DAP AN

45. New sources of energy are constantly being looked for _______.

A. as fossil fuels continue to dwindle

B. although fossil fuels continue to dwindle

C. so that we continue to reduce fossil fuels

D. fossil fuels continuing to dwindle

VII. Mark the letter A, B, C, or D to indicate the correct answer to each of the following sentences.