ПОМОГИТЕ ПОЖАЛУЙСТА СРОЧНО Say why these people are tired. ЭТО ЗАДАНИЕ

Example:
I (do) the room for three hours already.

I am tired because I have been doing the room for three hours already.

1) Jenny (draw) since morning. 2) Sam (work) there for fifteen years. 3) Chris (watch) TV for three hours already. 4) Rose and Alan (learn) Spanish for 2 years. 5) The children (play) tennis for forty minutes. 6) The Willers (try) to build their own house all these years. 7) Miss King (drive) since 8 in the morning. 8) Mister Swift (teach) since 1987.