uzupełnij zdania podanymi czasownikami w formie czasu present perfect


a) My Brother ......... (join) a theatre group.
b) I ......... (not be) to my art class for a few weeks.
c) ......... (You/ever see) a famous pop star?
d) My parents ......... (buy) some concert tickets.
e) The children .......... (never travel) abroad.
f) ......... (your brother/go) to university?