Раскройте скобки, употребляя глаголь в Present, Past unu Future Simple Passive. 16. Hockey (to play) in winter. 17. Mushrooms (to gather) in autumn. 18. Thousands of houses (to destroy) during the Great Fire of London. 19. His new book (to finish) next year. 20. Flowers (to sell) in shops and in the streets. 21. St Petersburg (to found) in 1703.