It is a good design (设计) p___ for us to learn

it is difficult for us to learn a foreign langua To read more English is good for us to learn it well 与 Read It is difficult for us to learn a learn in life ___we have a It is () for us to learn to wait in line it's a good idea____flashcard to help us learn english. It is hard of us to learn/of us to learning/for us to to lea _______very inportant for us to learn English because it is it is （p ） for us to learn english well it is difficult for us to learn a lesson in life we have act it is difficult for us to learn a lesson in life____we've ac it is difficult for us to learn a lesson in life until we've it is difficult for us to learn a lesson in life _____ we've