Having a trip abroad is certainly good for the old couple, but it remains _____ whether they will enjoy it.
—You couldn't have chosen any gift better for me. —________
— I'm sorry I've lost your software. Let me buy a new one. —________.
There used to be a temple in your village,________?
The new bridge is ________ the one built last year.
________knowledge a man has,________it is for him to get a good job.