They __________ find their way in the dark. (-)
could
couldn't
He _________swim across the pool easily. (+)
could
couldn't
I _________ lift the heavy box by myself. (+)
couldn't
could
We ________ hear the music from outside. (+)
couldn't
could
She ______(call) her friend to invite her to the park
called
We (study)for the math test together.
studied
He _______(post) a letter to his cousin in another country.
posted
He ______(carry) the books to the library.
carried
