Our environment becomes worse and worse, and it's time that everyone （）something about it.
A.正确答案Dcan do
B.could do
C.does
D.did
Our environment becomes worse and worse, and it's time that everyone （）something about it.
Our environment becomes worse and worse, and it's time that everyone （）something about it.
A.正确答案Dcan do
B.could do
C.does
D.did
