--- What's your new music teacher like? --- _______
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
We shouldn't ____________ litter on the ground. A. throwsB. throwC. threw
What can we do to make ____________ mother earth more beautiful?A. usB. weC. our