A good storyteller must be able to hold his listeners’ curiosity ________ he reaches the end of the story.
— Are there any flights for Hong Kong tomorrow? — _______ Why not give a call to find it out?
They urged that the library ______ open during the vacation.
The environmentalists said wild goats’______ on the vast grasslands was a good indication of the better environment.
— _______ I ask you something, if you are not busy? —Yes, of course you _______.
We should take good care of the elderly, as they are ______ to the sudden change of weather.