Mary ... that he was not right.
was understanding.
have understood
understood
has understand
have understand

2. The train ... on time so we were late.
didn't come
wasn't coming
wasn't come
didn't came
will come

How many chairs ... to the room?
you have brought
have brought you
you did bring
has bring
помогите пожалуйста
я лайкну и отмечаю лучшим и поставлю 5 звёзд
я буду очень благодарна вам​