–What is your sister going to be ________ she grows up?–She is going to be an engineer.

Playing basketball is sometimes very tiring, ______ I enjoy it very much.

— Would you like to go hiking with me, Susan?—I’d like to, _______ you don’t want to go alone.

       all of us enjoy playing computer games,         we can’t spend too much time on them.

 —Mark, where do you work?            —I work in a company        sells cars.