4. Complete the text with the correct form of the verbs below. Use the present perfect or past simple.
buy, help, invent, learn, participate, play, take, teach, win
Polish inventor Jan Kędzierski (2) _________ an interactive robot last year to help children learn English. Now, his invention (3) _________ a prize in the Innovators Under 35 competition.
Children love it! I (4) _________ one for my daughter for her birthday last June. She even (5) ___________ it on holiday last summer. But, (6) __________ the ________ her to learn English? Yes! It (7) _________ her many new words since her birthday. Since he made the robot, Jan (8) __________ in research with parents and their young children to see how much the children learned with the robot. One parent explained, 'Our son (9) __________ with the robot every day from September to December last year. I think he (10) ___________ a new word every day in that time.