I. Choose the correct item: 1. We a client of ours today at seven so we're afraid we can't help you.
a) see: b) are seeing; c) have seen; d) have been seeing.
2. Frank. I'd like you to meet Bonnie.—Thanks, Clyde, but we ... each other quite well.
a) know; b) are knowing; c) have known; d) have been knowing.
3. I ... to that new restaurant! Please, let's come in!
a) never was; b) am never been; c) have never been; d) have ever been.
4. Hey! Who ... my tooth brush again?!
a) uses; b) is using; c) has used; d) has been using.