______ is going to play with you? Mary.A. What B. Who C. When
根据汉语意思选择正确的单词。拯救A. saveB. svaeC. saev
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