the boy is too short to reach _ the book _the dictionary. 请问这里应该用either or 还是both and呢.?为什么另一个不对呢?谢谢!

问题描述:

the boy is too short to reach _ the book _the dictionary. 请问这里应该用either or 还是both and呢.?为什么另一个不对呢?谢谢!

用either or(否定时用)
肯定时才用both and