I couldn't tie __________ by __________ when I was two.
my shoeslaces, myself
She couldn't ___________by ____________ when she was two
comb her hair, herself
He couldn't pack __________ by __________ when he was two.
his schoolbag, himself
We could ____________ by _________ when we were 6 years old.
brush our teeth, ourselves
You couldn't _______ by________ when you were one.
yourself