Taper les trois mots pour exprimer la même idée en utilisant obligatoirement un modal (may, must, can't) qui doit exprimer soit une possibilité incertaine, soit
une quasi certitude, soit une impossibilité.

I'm almost sure that he is English. (almost = presque)
[?] English.

I know that he doesn't work in an office. He hates offices.
[?] in an office. He hates offices.

Perhaps he likes animals. (perhaps ; peut-être)
[?] animals.

Do they live in France?
I don't know. [?] in France but [?] in Italy.

It's impossible that she is a burglar.
[?] a burglar.

Look at this diamond ring! [?] very expensive.
I'm sure it costs a lot of money. [?] a lot of money.