40. It is obvious that lung diseases are____smoking.
Achieving a high degree of proficiency in English as a foreign language is not a mysterious without scientific basis.[A] process [B] practice [C] procedure [D] program
School children must be taught how to deal with dangerous .
Of the seven days in a week. Saturday is said to be the most popular _______ for a wedding in some countries.
One thousand dollars a month is not a fortune but would help cover my living _______.
Despite such a big difference in __ _ towards what one eats, there is no doubt that people in the west regard the Chinese food as something special.