–What are the police doing? –They are running __________the robber to catch him.
– Are those your friends ? – ________.
Mum, _______ my teacher, Miss Gao.
Mr. Lee is ________ teacher. ________ is from China.
熟人之间见面时表示礼貌的常用语是_________
– How are you ?– Fine, thanks. _______– I’m OK.