9 Choose the correct item. 1 We carefully while the guide was telling us about the history of the cave. A had listened B had been listening C were listening 2 She ....... for twenty minutes when she felt a cramp in her leg A had been swimming B would swim C used to swim 3 Jerry long distances within the city because he doesn't have a car. A uses to walk B used to walk C is used to walking 4 Mandy into the lake and started swimming. A would dive B dived C was diving 5 They a great part of the forest before it got dark and they had to return to the camp. A had explored B were exploring C used to explore .. ..
