s'il vous plait aider moi a faire cette exercice et merci beaucoup . Grammar : Modals of deduction (present ): EXERCICE 1 : Complete the rule with the following

s'il vous plait aider moi a faire cette exercice et merci beaucoup .
Grammar :
Modals of deduction (present ):
EXERCICE 1 :
Complete the rule with the following words: must - could - might - can't .
Rule :
a-When we're sure something is true , we use ___________ .
b-When we're sure something isn't true , we use _________ .
c-When we aren't so sure , we use ________ or _________ to express doubt .
EXERCICE 2 :
complete the sentences with suitable modal verbs . Sometimes there's more than one possible answer .
a-They're speaking Spanish , so they ___________ be from Argentina, I suppose .
b-She __________ love cats-she's got 20.
c-You _________ want more-you've already eaten two whole pizzas !
d-I'm not sure , but I think that man ___________ need our help . I don't think he can swim .
e-You've been working all day . You ________ feel really tired .
f- He's a bit older than John , but he _________ know him. I think they went to the same school .
g-Tim _________ be happy . He studied really hard, but he still failed the test .
h-It's the world's oldest mystery . You ________ know the answer .