The 2010 Expo will take place in Shanghai, ________ many countries consider a good chance to introduce their cultures to the world.
9. Please ______ your sister to bring the ticket for the concert.
8. Be careful ! The slightest spark could ______ the fireworks.
7. The manager meant ____ the workers that being 5 minutes late meant ____ the company.
6. Never waste anything, and ______ never waste time.
5. China is a ______ country ______ to the third world.