Excuse me. Where is Mr Green’s office?—It’s on ______ floor.

I missed the first part of ________ film Avatar.－What a pity ! You should be here half _______ hour earlier.

Last month I travelled across the Sahara Desert bycamel with some locals. Whatamazing experience!

He said that light ______much faster than sound.

. The main fact(or)s in human life are five: birth, food, sleep, love and death. (One could increase the number— add breathing for instance— but these five are the most obvious.) Let us ask ourselves ________ our lives.