问题
选择题
----If a new difficulty ______, what would we do ?
-----Don’t hesitate to turn to us .
A．is arisen
B．will be arisen
C．arose
D．would arise
答案
答案：C
题目分析：句意：如果新的困难出现了，我们该怎么办？--不要迟疑向我们求助。从what would we do ?可知这是和将来相反的虚拟语气的主句，从句应该用过去时或should do，were to do，所以选C。
