They_____going to ______ at the party.怎么填?

They_____going to ______ at the party.怎么填?
They_____going to ______ at the party.怎么填?

They_____going to ______ at the party.怎么填?
They【 are】 going to 【be present】 at the party
他们将出席晚会

are dance

are,sing

are，sing/dance

are
sing/dance

are
sing (songs)/dance/drink