Everyone should try to protect the environment.Everyone should ______ ______ _______ protecting the environment.
问题描述:
Everyone should try to protect the environment.
Everyone should ______ ______ _______ protecting the environment.
答
只有三个空,所以只能Everyone should do best in protecting the environment.若为4个空,则Everyone should do all efforts in protecting the environment.Everyone should do his best in protecting the environm...