1each student must take exams twice a year.2 they took exams in december.now her mother is preparing dinner.4 we had to get new information about this event. 1 the staff of internal auditors is supported by many large organizations.2 shareholders invested large sums of money in this enterprise.3 the work is carried out by a group of young specialists.4 are you satisfied with the results of the experiment? 1 you do not have to smoke here.last summer i had to work hard.3 they will be allowed to participate in the conference.4 he can speak good english.