Yleisperfekti, kestoperfekti, yleispluskvamperfekti vai kestopluskvamperfekti?

Täydennä lauseet oikealla muodolla.

I (opiskella) English in London.
She (lukea) that book three times.
We (odottaa) for the bus for hours when it finally arrived.
My hands are dirty because I (työskennellä) in the garden all morning.
He never (nähdä) snow before this.
Her eyes were red because she (itkeä) all afternoon.
How long (opiskella, sinä) German now?
She was exhausted because she (työskennellä) since early morning.
By the time the match started, it (sataa) for hours.
I was hungry because I (syödä, kielto) all day.
I (palauttaa, jo) my essay.
Why are you so tired? (juosta)?
Before moving to Finland, she never (asua) abroad.
Tom (opiskella) for only ten minutes when his friend called.
They (lähteä, jo) when we arrived.
The children (leikkiä) outside all afternoon.
He couldn't answer because he (valmistautua, kielto) for the test.