Modals - Degree of Necessity

Bill (shouldn't have/ might not have) told Ai about it. Now everyone will know!

(Chie should/ Chie's got to) pay her rent by Saturday. She'll be evicted if she doesn't.

You (should/ could) take some flowers, or a box of chocolate would be good.

You (aren't allowed to/ don't have to) go into a Japanese kitchen. It's just not done.

(We'd better not/ We shouldn't) discuss anything political. Sam loses his temper easily.

She (had to/ didn´t have to) bring food. We have a lot left over from the party.

Sami (could have/ should have) given them a CD. They like flowers, too.

You (were supposed to / weren't supposed to) mention the gift. Now it won't be a surprise.

(Must we / Hadn't we better) get going? The play starts in thirty minutes.

You (should / must) have your passport with you. You'll be deported if you don't.