I don’t like the way _______Tom speaks to his mother.Which one is wrong

John’ s mother is a

Could you go shopping with me this afternoonSorry .My money _________.I am afraid I have to wait some time .

This is the ______ piano on which the musician created some of his greatest work.

_______David be the new chairperson of the Birdwatching Society –He ________be, but I’m not certain about it.