问题
选择题
An increasing number of students, year by year, across China ____ hard to realize their dream of studying abroad.
A．is trying
B．are trying
C．will try
D．have tried
答案
答案：B
题目分析：考查时态和主谓一致：句意：随着学生数量的越来越多，整个中国都在努力实现他们出国学习的梦想。从句意看是现在进行时，主语是China，因为后面用their，所以这里指中国人，谓语是复数，选B。