The matter________your study surely requires________carefully.
Every hour and every minute ______precious to us because only six months are left for us to prepare for the college entrance examinations.
Chen Yang has brains.In fact,I doubt whether anyone in the class has IQ.
It’s the same in China --- many people, ________ some are not overweight at all, are always going on diets or taking weight-loss pills, ________ are often dangerous.
Television has many advantages.It keeps us ____ of the latest news and also provides entertainment in the house._______ it’s so popular worldwide.
It was not until the subprime loan crisis(次贷危机) ____ great damage to the American financial system that Americans ____ the severity of the situation.