________ a nice schoolbag! I like it very much.
A. How B. What C. What’s
Everybody should do something ____________ our planet.
A. to save
B. save
C. saving
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