How do you like the popular documentary “A Bite of China”（《舌尖上的中国》）—Excellent! You won’t realize how wonderful our Chinese food is _____ you watch it.

_______ no buses , we have to walk home

It is the first time that I_______to Beijing

The look on his face suggested that he just happened _______ the secret and _______ he himself was very shocked, too.

The doctors did all they could_________ him_________.[ ]