He ______________(to clean) his teeth every day.We ______________(to play) snowballs last

He ______________(to clean) his teeth every day.
We ______________(to play) snowballs last winter.
Tom ______________(to get) a letter yesterday.
Mary______________(to read) a new book next week.
I often ______________( to visit) my friend in Moscow.
Helen usually __________( to do) her homework at 7 pm.
Tomorrow my mother ______________(to buy) a new dress.
Five months ago I ____________(to swim) in the river.
Yesterday he ____________(to be) at the zoo.
Next summer he ____________(to be) at the zoo.
Now he ____________(to be)at the zoo.