—How can I wake up so early?—Set the alarm for 5 o'clock, ______ you'll make it.

English is understood all over the world ________ Turkey is spoken by only a few people outside Turkey itself.

Double ovens are a good idea, especially ________ you are cooking several meals at a time. 

           Professor Hawking stepped into the office he knew that there was no hope.

_____ surprised me most was that he made the same mistake again.