No one knew where my grandfather was, and many came to us in searching for him.
A. help
B. assist
C. provide
D. encourage
网友回答
A. help
(答案→)B. assist
C. provide
D. encourage
解析：本题从动词的搭配关系的角度可知答案为B。assist sb in doing sth帮助某人做某事。help sb (to) do sth; provide sb with sth; encourage sb to do sth。