Question

【题目】People are starting to use energy from the sun, wind and water because they cost very ________ and will never ________.
A.few; run out
B.low; be run out
C.much; be run out
D.little; run out

Answer 1

【答案】D
【解析】句意：人们开始利用太阳、风和水的能量，因为他们的成本很小并且绝不会用完。few很少的;low低的;much许多;little很少的;run out用光，用完。结合语境，所以选D。