1) You should/should not divide your essay into clear paragraphs. 2) It is a good idea to use direct speech/indirect speech when writing the summary of a text. 3) She thought that she saw/had seen that boy somewhere before. 4) I was having/had a shower when she called. 5) Th ey had been waiting for nearly two hours when she fi nally arrived/had arrived. 6) Th e majority of his classmates passed the exam with good results. He thought they were unprepared/well prepared for the exam. 7) If you want to say something is easy in English, you can say “It’s a piece of cake/bread”.