【单选题】In the summer, the Northern Hemisphere is slanted toward the sun, making the days longer and warmer than in winter.The first day of summer,June 21,is called summer solstice and is also the longest day...
【单选题】In winter the weather in England is often very cold. In spring and autumn there are some cold days, but there are also days when the weather is warm. The weather is usually warm in summer. It is somet...