сделать Choose the correct words.
4 you don't have to / shouldn't exercise when
you don't feel well.
5 she's walking to school. she might / can't have
missed the bus.
6 he can't / could have gone home. he's left his
bag on the chair
7 we mustn't/ don't have to learn chinese.
8 tania's in spain. you must / could have seen
someone else.