010 Shculture, and it has alsoprovided a fantastic model for Expo 2015 Milan ____________managing andorganizing events of this scale.

The wrong you have done to him is terrible，________， in my opinion，you should apologize to him

He ________ stay at home and look after his mother yesterday.

Xiao Zhang has ______homework every day and she really doesn’t know ______ first.

As is natural, a snake like this _____be very dangerous.