The meeting will be held in September, but____ knows the date for sure.
With so much noise of the traffic, I couldn`t __________and do my research work.
New technologies have made __________easier to enjoy life than ever before.
The newcomer went to the library the other day in search of ____________he could find about Mark Twin.
I woke up with ____________headache,yet by __________evening the pain had gone.
-___________you sing so loudly so late? Can`t you see it is already midnight? -Oh,sorry.