If the boy had _____ the dog alone it wouldn't have bitten him.
I''m surprised that he ____ to help me when I needed his help .
Japan is ____ the east of China, while India is ____ the west of China.
In no city of China _____ little about the economic development.
The ________ look on her face suggested that she _________ it.
— Are you going there with us? — If Mary wants to go, __________.