问题描述：
1、I discorvered that the most important requirement was ( ) English well .
A sperk B to speak C say D to say
2、It si five years ( ) the old man died .
A that B when C since D for
A sperk B to speak C say D to say
2、It si five years ( ) the old man died .
A that B when C since D for
问题解答：
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