Tell people________ wild animals.
A．not hunt B．not to hunt C．to not hunt
We shouldn't ________ water.
A．save B．saved C．waste
We should________ good______ animals.
A．be；to B．are；to C．be；for
We shouldn't wear fur________ leather clothes.
A．but B．and C．or
Don't make the oceans________．
A．to dirty B．dirty C．dirtyly