absent seldom required allowed supposed always

（1）He used to be a very quiet teenager.He remained silent most of the time and

seldom

seldom

talked to other people.
（2）People are usually

required

required

to give a general self-introduction in a job interview.
（3）What are people in Korea

supposed

supposed

to do when they meet for the first time？
（4）Do you think we may be

allowed

allowed

to take photos if we do not use a flash？
（5）If you are always

absent

absent

from class，You will fail the examination.