Question

If you have trouble pronouncing the word, you can repeat it over and over again _______ you are comfortable with it.

A．unless	B．if
C．until	D．while

Answer 1

C

解析試題分析：句意：如果你在這個單詞的發音上有問題，你可以一遍又一遍的重復知道你讀順為止。A. unless“除非”；B. if“如果”；C. until“直到…”；D. while“當…時候”。結合句意，故選C。
考點：考查連詞的辨析。