Have you seen______ pen? I left one here this morning.— Is it___________ black one? I think I saw it somewhere.

_______country is very large. What about________?

I think you can ________ money by yourself to buy a birthday present for your mother. —OK. I’ll try. I’ll not let a penny waste.

The world is changing _______________.[ ]

This pop star is very ______ with young people, who like his songs and style.