WHEN I CAME, THE SALESPERSON WAS ... TO THE CUSTOMERS HOW TO USE A...
18.
When I came, the salesperson was ... to the customers how to use anew kind of washingmachines.A.
demonstrating B. proving C. exposing D. teaching18.
When I came, the salesperson was ... to the customers how to use anew kind of washingmachines.A.
demonstrating B. proving C. exposing D. teaching