161. If we had had a map, we wouldn't have got lost.
162. It was such a low bridge that the bus couldn't go under it.
163. I gaven't seen him since i was a student.
164. It takes six hours to drive from London to Edinburgh.
165. Alan hasn't visited his parents for ages.
166. If Mr Will hadn't been late every day, he wouldn't have lost his job.
167. The youth was made to empty the police's pocket.
168. Lawrence last saw his sister when she left for Japan.
169. If John dodn't eat so many chips, he wouldn't be fat.
170. Unless John changes his way, he will end up in prision.