The penalty game

Have to
Must
Should
Ted's flight from Amsterdam took more than 11 hours. He ______ be exhausted.

Should
Hiking the trail to the peak _______ be dangerous if you are not well prepared for dramatic weather changes.
Might
Can

Might
Dave: ______ you hold your breath for more than a minute?
Can
Should

Have to
Should
Jenny's engagement ring is enormous! It ______ have cost a fortune.
Must

Can
Must
Please make sure to water my plants while I am gone. If they don't get enough water, they ______ die.
Could

Should
I ________ speak Arabic fluently when I was a child and we lived in Egypt.
Could
Can

Can
The book is optional. My professor said we ________ read it if we needed extra credit.
Could
Should

Could
Must
You __________ take your umbrella along with you today. It will rain.
Should

Can
I really _________ use the bathroom!
Have to
Should

I _________ speak Arabic fluently when I was a child and we lived in Egypt.
Could
Have to
Can

Might
Should
Ned: __________ I borrow your lighter for a minute?
Can

Can
__________ you always say the first thing that pops into your head?
Must
Have to