题目

阅读下面短文，把A-E五个句子填入文中空缺处，使短文内容完整。The world has been troubled by COVID-19 for over a year. Masks (口罩) are really important to everybody during the pandemic (疫情). We all wear masks every day. . This could become a big environmental problem.In a study, scientists from the US and Denmark said that people around the world are now using 129 billion face masks every month.. What a large number it is!According to Elvis Genbo Xu from the University of Southern Denmark, disposable (一次性的) masks are plastic products. . People think thatShe always does very well in the English exams. But she can __________ understand English radio programs. A. always B. hardly C. already D. easily