The radiation amount of a mobile phone for two half-hour periods per day is equal to _______ to an X-ray for ten seconds.
—Why did John ask me about the problem?—________,he tried to find a better way to settle it.
______a mobile phone can you ring _______you want to talk with anywhere.
Lucy's new job paid twice as much as she had made ________in the restaurant.
The government has lost a great deal of _because of the large increase in food price.
In England, many people usually go to ____ church on foot on Sundays, while others on ____bike.