【黑龙江省龙东地区2015年中考英语试题】—How far is it from Beijing to Haikou?
—It's a______ flight from Beijing to Haikou.
A. 3-hour-long B. 3 hours long C. 3 hours' long
【黑龙江省龙东地区2015年中考英语试题】—How far is it from Beijing to Haikou?
—It's a______ flight from Beijing to Haikou.
A. 3-hour-long B. 3 hours long C. 3 hours' long