He’s amazingly cheerful considering all he’s had to __________.
— 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.