问题补充:
We know a lot about these early years of European settlement because most migrants with their families and many of their letters still survive.
A. corresponded
B. related
C. associated
D. combined
答案:
(答案→)A. corresponded
B. related
C. associated
D. combined
解析:考查动词:A. corresponded和…一致,通信B. related和…有关 C. associated联系, D. combined结合,句意:我们了解很多早年的欧洲移民的事情,因为大多数移民和家人通信很多信还在。选A。