发生火灾了,形势很紧急,你应该拨打:A.oneoneone B.oneonenine
根据汉语意思选择正确的单词。保护A. preventB. protectC. throw
根据汉语意思选择正确的单词。环境A. paperB. environmentC. litter
根据汉语意思选择正确的单词。能源A. fireB. energyC. water
April 22nd ____________ World Earth Day. A. areB. isC. was
Everybody should do something ____________ our planet. A. to saveB. saveC. saving