There are________zebra crossings(人行横道)on the street.A. sometimes B. always C.never
Beijing Olympic Games are the __________ modem Olympic Games.
A car travels at a rate of 50 miles per hour.How long will it take to travel 300 miles?
About ________ percent of the earth's surface is covered with water.
Paris is the capital of __________.
__________ there any apples in the kitchen?A.Have B.Be C.Are