The Sanlu Milk Powder event is a clear indication that food safety is a big problem; nobody can ___ all foods are secure to us, but we are sure that the situation is turning for the better.
The Greens must have been to 2010 Shanghai Expo, __________ they?
Everyone in the village hoped that he would __________ after a few days' treatment.
—Have you met Mr. Smith recently? —Sorry, I haven't, but I hear he is working at __________ company.
I have been told that the new law will come into __________ on January 1st next year.
Each person has his / her unique character which __________ him / her from others.