1. Human beings are moving into_______ with the development of cloning and genetic engineering. We are not sure of what effects these scientific advances have on us.
(A) well-trodden path
(B) uncharted waters
(C) familiar ground
(D) square one
詳解 (共 1 筆)
未解鎖
(A) well-trodden pat...
阿摩線上測驗
登入