题目内容
We never know we will succeed ________ we actually try.
A.until | B.when | C.unless | D.though |
A
解析试题分析:句意:直到我们真正的尝试才知道是否会成功。never…until“知道……时候才”。 B. when“当……时候”;C. unless“除非”;D. though“尽管”,故选A。
考点:考查连词的辨析。
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