I hope you don’t mind me asking, ____ where did you buy these books?

Could you go to the park with me this afternoon— Sorry, I _______ there. I went there yesterday.

Can we ski on this mountain?—Of course.However, at no time _______ you do so alone.

依次填入下列各句横线处的词语，最恰当的一项是。（1）建造蚁丘的时候，有事需要一批一定 的细枝。（2）他们像受了惊一样做出 ，他们开始骚动，激愤，然后就像艺术家一样开始工作。（3）当他们察觉到远方的食物时，于是，长长的队伍像触角一样伸出来， 平地， 高峰， 巨石，去把食物搬回来。

Some international organizations _____ the fact that developing and developed countries were in different stages of development and should shoulder different responsibilities .