18. Where (to be) Boris? - He (to play) chess with his friend.

Where is Boris? - He is playing chess with his friend. (Где Борис? - Он играет в шахматы со своим другом.) * **Объяснение:** 'is' - Present Simple (состояние в настоящем), 'is playing' - Present Continuous (действие происходит сейчас).