Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions. 16. The professor told me that we should give this assignment in by Thursday at the latest. A. told B. should C. by D. latest 17. What you should do now is to make slides for the presentation tomorrow as we have a little time left. A. should B. to make C. little D. left 18. You have to apply for this position as soon as possible since it has only three vacancies. A. have to B. for C. as soon as D. since 19. Ms. Anna will give a fascinating lecture at 8 a.m., so you should be here at 7.45 to check in. A. will give B. so C. should D. be 20. My advice is you have to consider carefully before making the final decision. A. advice B. have to C. before D. making