He wrote a long letter ___he explained what had happened in the accident.
―I think it’s too late to apologize to Kate. ―Never mind. _______.
The hospital has a new system to help ______ the best service _______ the patients.
— My money for this month has _____. What shall I do? — I wonder how you ____ your money in two weeks!
I would appreciate it _______ you call back this afternoon for the appointment.
. This tower _______ back to 1860s and it is still in good condition.