B
题意:
人们在集市时间里做什么?
A.举办国际博览会。
B.买卖东西。
C.耕种土地。
D.做饭。
根据第一段I grew up in a small town in South Canada,where in my father's words for the seasons were"Spring,Summer,Fairtime and Winter! "At that time,a week-long fair was held in the town every autumn. Thousands of people from other towns came to sell and buy things. It was the busiest time of the year. 我在加拿大南部的一个小镇上长大,用我父亲的话来说,那里的季节是“春天、夏天、集市时间和冬天!” 那时,每年秋天镇上都会举行为期一周的集市。成千上万来自其他城镇的人来这里买卖东西。那是一年中最忙的时候。 可知,人们在集市时间里买卖东西。故选B。