1) The experiment d) will be described in several journals. 2) The mail is n) usually brought at 9 a.m. 3) These machines i) are going to be tested again.4) When can the new equipment o) be installed? 5) It's a pity the concert h) was not recorded, 6) Are the orders m) always fulfilled in time? 7) If we use the old methods, a lot of time 1) may be wasted and very little be achieved. 8) Something important k) was being discussed, so I sat down to listen. 9) No decisions j) have been taken yet. 10) This monument b) was erected three hundred years ago.11) Offers e) are made and contracts are signed in this office. 12) Have any interesting exhibitions or fairs a) been held recently? 13) All these little wooden houses g) were built with very simple tools many years ago. 14) The future church f) is being designed by several well-known architects. 15) The lost dog c) was being looked for everywhere.