 157  a) been held recently? b) was erected three hundred years ago. c) was being looked for everywhere. d) will be described in several journals. e) are made and contracts are signed in this office. f) is being designed by several well-known architects. g) were built with very simple tools many years ago. h) was not recorded, i) are going to be tested again. j) have been taken yet. k) was being discussed, so I sat down to listen. 1) may be wasted and very little be achieved, m) always fulfilled in time? n) usually brought at 9 a.m. o) be installed?
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Exercise 165,
Change the following sentences into the Passive Voice.
A using the Indefinite Tenses (give two forms where possible).
Example: Tom gave her a book. — She was given a book. The book was given to her.
157 
