5 It's not a good idea to eat in class. You
6 It is a teacher's duty to check students' homework.
A teacher
7 It's not necessary for Tom to go to football
practice on Sundays.
Tom
8 It's not a good idea for students to be late for
the exam.
Students
9 It's not necessary for Jane to take the bus to
school.
Jane ...
10 It's a good idea to exercise to keep fit.
You
11 It's Ruth's duty to answer phone calls and make
appointments.
Ruth
12 It isn't necessary for students to wear a uniform
at school.
Students
​

adekvat3    3   16.03.2021 17:26    6