Most people on this island are recreational fishers, and _______, fishing forms an actual part of th

Most people on this island are recreational fishers, and _______, fishing forms an actual part of their leisure time.

A.accidentally

B.purposefully

C.obviously

D.formally

答案及解析： C

解析：

考查词义辨析，accidentally“偶然地”；

purposefully“故意地”；

obviously“显而易见地”；

formally“正式地”。