Can, should, must

"During recess, students _______ play games with their friends."          a) can b) should c) must

"When it's raining outside, you _______ remember to take an umbrella."                             a) can b) should c) must

"After finishing your meal, you _______ clear the table and wash the dishes."                                   a) can b) should c) must

At the park, you _______ pick flowers to take home."                                     a) can b) should c) must

"You _______ choose your favorite book from the library."                         a) can b) should c) must

"You _______ finish your homework before watching TV."                     a) can b) should c) must

Children _______ always ask for permission before using the internet."                      a) can b) should c) must

"During the exam, students _______ raise their hands if they have a question."                          a) can b) should c) must

"At the museum, visitors _______ speak quietly to avoid disturbing others." a) can b) should c) must

"Before crossing the street, you _______ look both ways for oncoming traffic."                                   a) can b) should c) must