... terrible , 'I 20. 15. see a doctor . - . ~. .,_~ 16. go to a party last night ivptnt; Switch roles. 21. buy some books yesterday 26. 22. begin to read a new novel 27. ... pairs of sentences. Discuss their use. What are the similarities between the two tenses? 1. A: Where are Ann and Rob? I haven't seen them for a couple of weeks. B: They're out of ... f&,.< :, , 5 31. make your own diier last night 36. "\.: 32. leave home at eight this morning 37. !i:3 ,.,. 33. drink a cup of tea before class 38. 15 34. fall down yesterday...