151. the equipment _____ out of order, the experiment has to be put off.
  a. has been   b. being    c. is    d. be

152. the bad weather meant _____ the football match for several days.   
  a. to delay          b. delaying          c. delay         d. having delayed 
153. _____, we decided to leave at once, as we didn't want to risk missing the last bus.
a. it have pretty late b. it being pretty late
c. as it being pretty late d. it was being pretty late

154. the material of the course is arranged in twenty - four teaching units, each _____ of an introduction, a text, and some written exercises.  
a. consist                       b. consisting
c. consists                          d. is consisting

155. at 5 o' clock this morning i suddenly woke up and seemed _____ someone screaming in the street. 
a. to have heard    b. hearing    c. hear            d. having heard

156. to my great surprise the food was still on the table, _____.
  a. untouching                 b. no touch  
c. untouched                  d. not to be touched

157. some students prefer a strict teacher who tells them exactly what to do. others prefer _______ to work on their own. 
a. leaving                          b. to leave
c. having been left                   d. to be left

158. the second book was _____ by august 1996, but two years later, the end was still nowhere
in sight. 
a. to complete                         b. completed
c. to have been completed             d. to have completed

159. some modern children's fiction deals with serious problems and situations with a realism
seldom ______ in earlier books. 
a. attempted                    b. attempting
c. being attempted                 d. having attempted

160. written in a hurry, ______. 
a. he made many mistakes in the paper
b. there were a lot of mistakes in the paper
c. we found plenty of errors in her paper

d. the paper was full of errors