单项选择题 —What did the children do in school—Their teacher () a short talk about their holiday.
单项选择题 George entered the box and picked up one of the directories inside, () that someone unknown had torn out the very page he needed
单项选择题 In the U. S. , the television set has attained the rank of a legal necessity, safe from repossession. () debt, along with clothes, cooking utensils, and the like.