--- Mr. White, what do you think of these different sorts of wine after tasting them?--- Well, I can’t say which wine is best . It’s a(n) ______ of personal taste.
___we have satisfied you, you have no grounds of complaint.
Why these things happened was ____ the driver had been careless.
They had camped once before, ____ they knew what to take.
____ you are dismissed.
He is very old,____ he still works very hard.