The police are _____ a search for the body of the man who disappeared

______LiuWei has no hands, he can play the piano very beautifully.

Every necessary means____ to protect milu deer which____ very valuable to usAs a result, the number of milu deer is increasing

He invited some classmates to come to his party, but _________ came.

Water is the cheapest drink. And it is also ______.