When it was clear she did not speak a word of English,I tried to talk to her using the Spanish I learned while living in Europe.
A. what
B. that
C. why
D. how
网友回答
A. what
(答案→)B. that
C. why
D. how
解析：此题考查形式主语it和主语从句。主语从句往往需要作形式主语it放在主语位置上,而把从句放在句末。由于谓语部分 “was clear”表示“确定”语气,所以主语从句不该由疑问词what,why,how引导。