To take - took - taken
To come - came - come
To get - got - got / gotten
To be - was / were - been
To think - thought - thought
To leave - left - left
To read - read - read
To set - set - set
To wear - wore - worn
To ring - rang - rung
1) We could see Mary because she had left.
2) They answered thousands of search requests per day.
3) We had to create a useful computer programme for studying English grammar.
4) The companions set their office the hired flat near the centre of the town.
5) She received much criticism from experts.
6) At first they tried to do their best, but then gave up.
7) Andrew managed to raise much money from the sponsors.
8) Everybody liked this simple but neat design.
9) The manager thought of an ad to attract the customers' attention.
10) Daniel listed the groups according to their popularity.