B: Yes, 19) ........................... (study) it for three years now and I 10) ........................... (visit) the country twice.

9) have been studying

The present perfect continuous is used here as the action of studying Russian started in the past, has continued for three years and is still going on.

10) have visited

The present perfect simple is used to express that the action of visiting the country happened twice at unspecified times in the past.

Ответ: have been studying, have visited