The Space Shuttle Columbia broke into pieces over Texas as it returned to the earth on February 1,2003,__________all seven astronauts aboard.
This coat will lose its color ___________ it’s washed.
These students are quick at learning. We’ll have them __________ with new methods.
What he lacks is more patience,___________?
I told him what I was surprised____________ his attitude towards his study.
___________ you've got a chance, you might as well make full use of it.