1. Jack has a right to know. He ...................the news immediately. If you don't do it, I will. A. ought to tell B. ought to be told C. may tell D. may be told 2. A package ...............carefully before it is mailed. A. has to be wrapped B. has to wrap C. had to be wrapped D. had to wrap 3. The games are open to anyone who wants to join in. Everyone ................. A. can be participated B. could be participated C. can participate D. could participate 4. You'd better not drink that river water. It ................ A. could be polluted B. could pollute C. can be polluted D. can pollute 5. A bald eagle ................from the other large birds by its white head and white tail. A. can distinguish B. can be distinguished C. could distinguish D. could be distinguished 6. When you are on duty, your uniform .................at all times. A. must be worn B. must wear C. must have worn D. must have been worn 7.Today, many serious childhood diseases_____ by early immunization.[ sự miễn dịch] A. are preventing B. can prevent C. prevent D. can be prevented 8.Bicycles_______ in the driveway. A. must not leave B. must not be leaving C. must not be left D. must not have left 9.Beethoven’s Fifth Symphony_______ next weekend. [ Symphony: khúc giao hưởng] A. is going to be performed B. has been performed C. will be performing D. will have perform 10.They advised that part-time workers should ________ A. be employing B. have been employ C. employ D. be employed