According to a recent survey, homework is ______ students most often blame for their lack of sleep.
--People should use public transport instead of their own private cars.--- _______.The roads are too crowded as it is.
Nowadays more and more people regard traveling as part of their life, and Chinese transport has been strengthened for the holiday travel ____.
---Mum, have you seen my U-Disk? ---____________ you bought last Sunday? I'm afraid I haven't seen ________.
You don’t need to be ______ Bill Gates to be successful. As long as you can help someone and inspire him to make a difference, you are ____ success.
After the earthquake, the first thing the local government did was to provide ________ for the homeless families.