.Although the teacher did not mention any names, everybody knew who he was
Those who have ______ floods and sandstorms know the importance of environmental protection.
He went _____to New York, without a stop in Hong Kong.
______ the Smiths moved to the country a year ago, they have been enjoying a better life.
My sister Lucy is _______ different from me in looks, although we are twins.
Mr. Black Shanghai in a few days.