V. Choose the sentence which is closet in meaning to the sentence above. `41`. Solar energy is not only plentiful but also clean. A. Solar energy is both plentiful or clean. B. Solar energy is either plentiful or clean. C. Solar energy is both plentiful and clean. D. Solar energy is neither plentiful nor clean. `42`. We will reduce energy consumption as much as possible. A. Energy consumption will be reduced as much as possible. B. Energy consumption will reduce as much as possible. C. Energy consumption will be reducing as much as possible. D. Energy consumption will reduced as much as possible. `43`. Don’t forget to turn off the lights before leaving. A. Remember turning off the lights before leaving. B. Remember to turn off the lights before leaving. C. Forget to turn off the lights before leaving. D. Forget to turning off the lights before leaving. `44`. Nuclear power is both expensive and dangerous to our environment. A. Nuclear power is not only expensive but also dangerous to our environment. B. Nuclear power is either expensive or dangerous to our environment. C. Nuclear power is neither expensive nor dangerous to our environment. D. Nuclear power is either expensive nor dangerous to our environment. `45`. Solar energy is free. Solar is inexhaustible. A. Solar energy is both free or inexhaustible. B. Solar energy is either free or inexhaustible. C. Solar energy is not only free but also inexhaustible. D. Solar energy is free but inexhaustible.