For sustainable development, the government has decided to give __________ to those energy conserving and environmental-- friendly business in many aspects.
We can never expect________bluer sky unless we create________less polluted world.
The couple look very excited,because their only son has been _______to Hong Kong University.
We’ll take a honeymoon trip to Venice. Would you like to _____ my dog for me while we are away?
___________two tickets for the new play at the Grand Theatre on Saturday. Shall we go and see it together?
_____ is known to all that the Amber Room belongs to the Russians.