Odpowiedź:
1.Paper invented in china
2. The new technology museum has already built
3. my brother will give a science award next week
4. just as I have created a model of a house, everything fell apart
5. I was walking across the street when I saw the accident
6. Have you ever designed anything?
7. I haven't seen the doctor yet.
8. I started eating healthy and doing exercises last month.
9. if you mix yellow and blue you get green
10. If you invent a new gadget you become rich and famous
Wyjaśnienie:
W przykładzie czwartym znajduję się słówko "just", które jest mi.in wyznacznikiem czasu Present Prefect, stąd jest to podpowidzeć do tego przykładu.
