Where ‘s Mary –She’s not in. She with her mother ______ at the supermarket.

I didn’t know his telephone number. ________ it, I ________ then.

He plays ____________ piano everyday to become the champion of his country.

TFBOYS’ songs ____ sweet and many of us like listening to them.

I didn’t pass the Maths exam last time. I’m so worried about it.— harder, you will make much progress .