Question

31. He saw no reason why he ... smoke. a) couldn’t b) cannot c) have to 32. This district is changing all the time. Many old buildings ... down. a) pulled b) have pulled c) have been pulled

Answer 1

31. couldn't

32. have been pulled

Answer 2

31. He saw no reason why he couldn't smoke. (a)
32. This district is changing all the time. Many old buildings have been pulled down. (c)