问题补充:
Scientists have found it seems animals and humans are much alike than we thought.
A. as though
B. even though
C. only if
D. even if
答案:
(答案→)A. as though
B. even though
C. only if
D. even if
解析:考查固定词组,A. as though虽然;B. even though尽管;C. only if只有;D. even if即使,句子意思“科学家已经发现了好像动物和人类比我们想象的更相似”