Put the words in brackets into the correct form. 26. - i'm thinking of buying a new computer. - yes, but computers (cost) so much money. what's wrong with the one we've got? 27. you see i (work) on a big project and i do not exactly know when i can take my holiday. 28. i (not read) a newspaper today yet. 29. -sorry, i'am late. - it's ok. i (not wait) for you long. 30. when one of the climbers saw that his friend was in trouble, he (run) to help. 31. thank you for the offer, but i think i (stay) at home today. 32. if you revise, you (pass) an exam. 33. who (to design) computer programs? - software engineers do it. 34. where (he/live) for the last 5 years? 35. (you/see) paul in the concert yesterday?