In some of the war-torn countries temporary homes had to be put up quickly to ___________ the homeless.

How much is the ticket to Central Park——–A one-way ticket_______＄40,and you can _____another ＄20 for a round-trip.

our wife come back from Africa—Yes, but she _____here for only one month before she went on another expedition to Cuba

The Mekong River Commission has found no evidence thedams on the upper reaches have an influence on the water flow downstream

Though Mr. White is very busy with his business all day, he still _________ his three children and tries his best to get along well with them.