Do you have _____ homework than before? A. little B. less C. littler
What ____________ we do to protect our environment? A. do B. shouldn't C. can
We can save water and ____________. A. energy B. energys C. energies
We shouldn't ____________ litter on the ground. A. throws B. throw C. threw
What can we do to make ____________ mother earth more beautiful? A. us B. we C. our
We can plant more ____________. A. trees and grass B. tree and grass C. tree and grasses