Модальные глаголы(саn, could, may, must, have to, should, need)
1 this information ___ be relied on.
2 ____ I smoke here?
3 you ____ attend your classes every day
4 I ___ swim very quickly in my childhood
5 you ___ pay all at once, you ___ take a credit
Answers & Comments
2 can/may
3 must/should
4 could
5 need/have to.... can