We can go to school ________ bike to make our city greener.

—There is going to be the ________ Art Festival next week.

—Great. We can enjoy some beautiful paintings again.

—Who got the first prize in this competition?

—Of course Tom did. He worked ________ among us.

—Billy used to be shy and quiet, but he is very outgoing now.

—Yes. We are all ________ at his changes.

We can’t go swimming ________ our parents are with us.