Many birds are out of ____________ now, because we have done a lot of things to protect __________ birds.
A.dangerous; endangered | B.danger; dangerous |
C.endangered; danger | D.danger; endangered |
Many birds are out of ____________ now, because we have done a lot of things to protect __________ birds.
A.dangerous; endangered | B.danger; dangerous |
C.endangered; danger | D.danger; endangered |