How are you today ? ——- Oh, I ______ as ill as I do now for a very long time

However，at　times　this　balance　in　nature　is＿＿，resulting　in　anumber　of　possibly　unforeseen　effects．

The match is going to start in a minute. Let’s ____.

Every day I can go to school on foot _______ by bike because my home isn’t far.

________ we go swimming every day ________ us a lot of good.[ ]