Did you learn English? A. Yes,I do. B. Yes,I did. C. Yes,you did.
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
What ____________ we do to protect our environment?A. doB. shouldn'tC. can
We can save water and ____________. A. energyB. energysC. energies