Задать вопросы к этим ответам: yes, he will. he will buy tickets tomorrow. 2) when mike will go to the railway station in the afternoon. 3) who sally will go to the airport on monday. 4) how i think the ticket will cost 100 pounds. заранее !

1) Will he buy tickets tomorrow?
Yes, he will. He will buy tickets tomorrow.

2) When will Mike go to the railway station ?
Mike will go to the railway station in the afternoon.

3) Who  will go to the airport on Monday?
Sally will go to the airport on Monday.

4) How much will the ticket cost? 
I think the ticket will cost 100 pounds.