Modal verbs

She looks pretty sick. I think she ________ go to a doctor

 You’ve been driving all day. You ________ be exhausted! 

You ________ smoke so much. It’s bad for your health. 

Hey I’m lost. ________ you help me? 

 You have such a beautiful voice. You ________ sing for us! 

 I know he speaks five languages, but ________ he speak Arabic? 

 That looks very expensive. It ________ have cost a fortune! 

 I ________ believe that you failed your test! 

I’m on my way. I ________ be there in about 10 minutes.  

 I ________ afford that.