分类：教育/科学-学习帮助
问题：完成句子，根据上句在下句的空格上填写一个单词，使上下两句意思相符 
A. The tree is very tall. I can't climb  up. B. The tree is ____ tall _____ I can't climb it up. C. The tree is ______ tall for me _____ climb up. 
回答：B. The tree is __so_ tall __that___ I can't climb 
it up. 

C. The tree is __too____ tall for me _to____ 
climb up.