A. trees
Đáp án đúng: C
Thông tin: Air pollution is where there are gases in the air that is harmful, these gases come from object or buildings like harmful smoke from factories, vehicles, automobiles.
Dịch: Ô nhiễm không khí là nơi có các khí độc hại trong không khí, các khí này đến từ các vật thể hoặc công trình như khói độc hại từ các nhà máy, xe cộ, ô tô.Read the passage and choose the correct answer for each question
Children’s education is changing rapidly today. In the past, teachers made children sit still for hours. They made them memorize all sorts of things. In other words, children had to go on repeating things until they knew them by heart. Today, many teachers wonder if it possible to make children learn at all. They say you can only help them learn. They say you must let children learn and discover things for themselves.What did teachers make children do in the past?
Read the passage and choose the correct answer for each question
Christmas is the biggest festival of the year in most of Britain. Celebrations start properly on December 24, Christmas Eve, although there have been several weeks of preparation beforehand. The Christmas tree and all the presents, food, drink and decorations have been bought. Christmas cards have already been sent to friends and relations. About a week before Christmas, people usually put up their decorations and decorate the Christmas tree with lights, various colored decorations and an angel on the top. Family presents are usually put under the tree.