It is hard for the firefighters to get ________ to the burning building.
A. closelyB. closed
C. closeD. closing
Dr. White has rich _________ in dealing with the children who have had bad _________.
A. experience; experiencesB. experiences; experience
C. experience; experienceD. experiences; experiences
With the Spring Festival coming, the _________ in the street becomes more and more delightful.
A. air B. surrounding
C. environment D. atmosphere
This English dictionary is expensive, but it is of ________.
A. usefulB. great use
C. no use D. useless
Unemployment is a major cause of poverty.
A. 主修的 B. 大量的
C. 主修课程D. 主要的
Tom gave Helen an apple in exchange for a piece of cake.
A. 交换 B. 改变
C. 娱乐D. 教育
