Completar frases Auxiliary verbsVersión en línea Choose the correct auxiliary verb to complete de conversation por Liliana Pérez 1 A . Hi . Could you give me some information on your Russian courses ? B . Yeah , sure . Take a seat . What would you like to know ? A . Well , what a typical class ? ( involve ) B . Well , it varies , but there is always a range of activities , with lots of speaking practice . A . So how many students there in a class ? ( be ) B . A maximum of 12 . A . And where they ? ( come from ) B . All over the world . We have about 30 different nationalities at any one time . A . And how long each class ? ( last ) B . About 50 minutes , longer if it's an intensive course . A . How you one student's level ? ( decide ) B . Apart from beginners , there's a written test and also an oral ~ so that we know how good you are at speaking and understanding . A . What qualifications the teachers ( have ) , if you don't mind me asking ? B . No , it's a good question . All our teachers are native speakers and most of them have lots of experience . A . OK , fair enough . I've used quite a few books already so which ones you ( go / use ) in the next course ? B . Well , It depends on the class . In intensive courses we use a wide range of different materials , some of them we develop ourselves . A . One last question . How much the course ( cost ) ?