Complete the text with the correct form of the verb in

Complete the text with the correct form of the verb in brackets (present simple, present continuous, present perfect or present perfect continuous). If more than one form is possible, use the continuous form.
Millie goes to tango lessons in her free time. The lessons ... (take) place on Thursday afternoon. She ... (learn) Argentinetango for five months. She ... (already/learn) the basic elements and now she and her partner ... (begin) to improvise. Rightnow they ... (prepare) for the carnaval. Millie's friend Katie ... (not understand) why she ... (want) to learn such an old-fashioned dance. But Millie just love this!