50 очков open the brackets using the proper form of the par- ticiple. 1. the boy (to play) in the garden is my sister's son. 2. while (to prepare) for the examination he made notes. 3. you can get the book (to recommend) by our teacher from the library. 4. he asked her to go on with her story (to prom- ise) not to interrupt her. 5. (to see) her he raised his hat. 6. (to lose) the key i couldn't enter the house. 7. (to sign) the letter the manager gave it to the secretary (to ask) her to send it off at once. 8. while (to cross) the bridge, we saw our teacher who was talking with an old man. 9. (to represent) by governors of the dependent territories, the queen is the head of the common- wealth, 10. the leaves (to lie) on the ground reminded us of autumn. 11. (to have) plenty of time we decided to walk to the station. 12. (to finish) the experiment they left the labora- tory. 13. the letter (to translate) now should be posted immediately. 14. (to be) the oldest institution of the govern- ment, monarchy goes back to the ninth century.