SINCE/BY THE YEAR OF2000的区别jake has studied chinese in this school_____the year of 2000A since B in C on D by
问题描述：
SINCE/BY THE YEAR OF2000的区别
jake has studied chinese in this school_____the year of 2000
A since B in C on D by
答
选since
因为时态是现在完成时,且句意是Jack自2000年至今一直在这所学校学中文.
since自从.开始以后
by...到什么时候为止 也经常用现在完成时,但句意不同,比如Jack has studied 10 courses in this school by the year of 2000,意思就变成了截止到2000年为止,Jack已经在这所学校学习了10门课程.再比如There has been over 100 people injured in the earthquake by 30 July,意思是截止7月30日为止,地震受伤人数已超过100人.