Choose the best answer among A, B, C or D

A. when

B. whose

C. who

D. which

A. of cooking

B. to cook

C. cooking

D. cook

A. Humans

B. Animals

C. Creatures

D. Beings

A. fossil fuels

B. power nuclear

C. geothermal heat

D. solar energy

A. we depend on which

B. which we depend

C. on which we depend

D. on that we depend

A. wearing

B. whom is wearing

C. to wear

D. is wearing

A. on

B. at

C. in

D. for

A. would help

B. helped

C. would have helped

D. had helped

A. unlimited

B. renewable

C. available

D. non-renewable

A. I don’t.

B. I need it.

C. Why’s that.

D. It’s a good idea.

A. to be receiving

B. to receive

C. being received

D. receiving