Go ________ school now, Nancy. A. up B. to C. 不填
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