问题
选择题
As is known to all language learners, the newly learnt words will soon be forgotten unless ______ used in everyday communication.
A．gradually
B．selflessly
C．fluently
D．frequently
答案
答案：D
副词辨析。gradually逐渐地；selflessly自私地；fluently流利地；frequently频繁地；句意：新学的单词如果在日常交流中没有被频繁地使用，将很快被忘记。
