问题描述：
1、it's our teacher---helped me improve my poor english a lot A、it B、that C、this D、whose
2、neither i nor he-----already been to the great wall in beijing
A、have B、has C、was D、is
2、neither i nor he-----already been to the great wall in beijing
A、have B、has C、was D、is
问题解答：
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