They were ________ (swim) at the beach
swimming
the birds _____ singing a song.
WERE
The prince _____ dancing with the princess
WAS
I was ________ (play) video games
playing
The boy was ______ (run) yesterday.
running
The boys _____ watching TV
WERE
they were _______ (make) a cake.
making
they _____ playing fotball
WERE
He _____ swimming in the lake.
WAS
they were ______ (eat) pizza yesterday.
eating