【题目】None of the underwater workers has been harmed by the great fish．______，most fish were so friendly that they played with the instruments．
A．InsteadB．Even though
C．HoweverD．Though
在线课程【答案】A
【解析】
试题解析：没有一个水下作业的工人被这些大鱼所伤。相反，这些鱼都很友好，它们在玩弄那些仪器。
句意：Instead相反；Even though尽管；However然而；Though虽然。根据句意，故选A。