Modal verbs: must, have to and should
Tóm tắt
The lesson distinguishes obligation, external necessity, advice, prohibition, and past duties through family contexts.
Hiểu bài
The grammar section practises obligation, necessity, and advice. The conversation states, “You must respect your parents and grandparents, but you should also express your opinion.” Family examples include “I have to be back home by 9 p.m.” and “my parents think I shouldn’t stay out after 10 p.m.” Another item contrasts present rules with past duties: “In the past, women had to do all the housework.” Learners choose modal forms according to meaning and time reference, without receiving an answer key here.