For questions 26 - 30 choose the best alternative a or b. 26. colin intended to do a lot of walking in wales, so he packed some sensible (a)/sensitive (b) outdoor clothes. 27. she was a very conscious (a)/conscientious (b) student and attended all her lectures. 28. can you say (a)/tell (b) the difference between these two photographs? 29. scientists are investigating the ways in which the oceans affect (a)/effect (b) the climate. 30. every year he was supposed to go to tokyo, and every year he could think of excuses for not making the journey (a)/travel (b).