24. – Jack, when shall we go to visit Mr. Smith? – It’s up to him. We’ll go to see him whenever _______.
We agreed to accept ________ they thought was the best professor in the college.
I don’t know who invented ________ telephone. It’s really ________ most useful invention.
----Whose advice do you think I should take? ----________.
Could you show me the TV set you’d like ________?
When somewhat better ________ academically, he returned home to continue his research.