Tony and Sam ______ my friends. Their mother _______ our English teacher.
The meeting is important that you mustn’t miss it. (盐城)
Doctor Wang operated _______my mother yesterday.
— Where is your boss? I haven’t seen him for several days.— He ____ to Shanghai on business.
It was raining heavily, _____ we decided to stay at home and watch TV.
Dr Bethune came to China ______the Chinese soldiers and gave his life to ____Chinese.