Complete the sentences.
Пример: 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 threehours already
4)Rose and Alan (learn) Spanish for 2 years
5)The chilldren(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)Miss Swift (teach) since 1987
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