The time he has devoted in the past years __________ the disabled is now consideredto be __________ great value __________ him.
The experts think that India’s population may be _______than China’s ______ 2020.
It was snowing hard _______ we had to stay at home and watch TV.
________a player , I’m looking forward ________ the 2008 Olympic Games.
Heilongjiang is in the _______ of China.
Your digital watch is quite nice. Where did you buy_____?I want to buy_____,too.