Did they came the music competition ?
根据汉语意思选择正确的单词。 保护 A. prevent B. protect C. throw
根据汉语意思选择正确的单词。 环境 A. paper B. environment C. litter
根据汉语意思选择正确的单词。 能源 A. fire B. energy C. water
April 22nd ____________ World Earth Day. A. are B. is C. was
Everybody should do something ____________ our planet. A. to save B. save C. saving