Odpowiedź:
Wyjaśnienie:
2. l met Jason in 2015. (since)
I haven't met Jason since 2015.
3. They aren't here; they're at the library. (gone)
They have gone to the library.
4. George is still doing his homework. (yet)
George hasn't finished his homework yet.
5. Mary cleaned the floor a minute ago. (just)
Mary has just cleaned the floor.
6. Do you know what pierogi taste like? (ever)
Have you ever tasted/(eaten) pierogi?