Unfortunately, the element Madam Curie devoted all her life ________ her death[ ]

Our English teacher is ______ our teacher; she is also our best friend.

What are you doing this afternoon—My computer is broken. I have to have it repaired this afternoon.

Look, what have you done—Sorry. I think if I ____ another chance, I’ll do it better.

read another book this week.－Well, maybe _____ is not how much you read but what youread that counts.