________from the top of the tower,the Birds Nest looks more magnificent.
It was in that country_____he studied for his doctor’s degree____he fell in love with the girl.
It is strongly suggested that measures________factories to pour waste into rivers by the government.
— How long do you think it will be _______ the USA recovers from the losses of the financial crisis?— Perhaps four or five years.
When________there, the postman found the door locked and then stopped ______the letter under it.
This agreement will be signed by the managers_________.