( )have people done to their environment?
( )have people done to their environment?
Have you done ____ to improve the environment?
You have done something useful to i( ) the environment
have you ever done something to protect environment?
These animals are all used to their environment;__they have
Once harm is done to the environment,it takes years to have
Many experiments have been done to ___ their purpose.
四道英语句型转换,1.What you have done does harm to the environment.W
what they have done __useful to the people
have done/to be done
Nowadays young people have their personal look.They want to
now people have more____(free) to choose their jobs