I ______ tell you with certainty that he won’t be able to finish it before the deadline. 

If people eat natural plant poisons by mistake, they _______ go to hospital without delay.

－You _______ be happy with the strong public support you’ve received.－Yes,you’re right.I’m really excited.

— _______ I ask you something, if you are not busy?—Yes, of course you _______. 

—_______ you read the words in English? —No, I can’t. They are too difficult for me.