题目内容
The question of _________ English will keep on changing in the future,though most people doubt,is actually easy________.
A. if;to be answered B. whether;to answer
C. how;answered D. what;to answer
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题目内容
The question of _________ English will keep on changing in the future,though most people doubt,is actually easy________.
A. if;to be answered B. whether;to answer
C. how;answered D. what;to answer