问题
选择题
____ he has made up his mind to do something, nothing will stop him.
A．Once
B．Before
C．Although
D．As if
答案
答案：A
词义辨析题。一旦他下定决心什么事情都不能阻止他。A. Once 一旦 B. Before 以前 C. Although 虽然 D. As if 似乎 根据语境选A
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