![Students take an English language test on an open field at a school in Kisumu, Kenya, May 31, 2018, because the classroom was too crowded to prevent cheating. (Photo/Agencies)](http://www.ecns.cn/hd/2018/06/01/3843234b00bc49dd993cb0a6ccd3649d.jpg)
Students take an English language test on an open field at a school in Kisumu, Kenya, May 31, 2018, because the classroom was too crowded to prevent cheating. (Photo/Agencies)
![Students take an English language test on an open field at a school in Kisumu, Kenya, May 31, 2018, because the classroom was too crowded to prevent cheating. (Photo/Agencies)](http://www.ecns.cn/hd/2018/06/01/538b485fa1e24f7086969babf76e8040.jpg)
Students take an English language test on an open field at a school in Kisumu, Kenya, May 31, 2018, because the classroom was too crowded to prevent cheating. (Photo/Agencies)
![Students take an English language test on an open field at a school in Kisumu, Kenya, May 31, 2018, because the classroom was too crowded to prevent cheating. (Photo/Agencies)](http://www.ecns.cn/hd/2018/06/01/83ccbe6211e24f6394b5fd623e9dcac3.jpg)
Students take an English language test on an open field at a school in Kisumu, Kenya, May 31, 2018, because the classroom was too crowded to prevent cheating. (Photo/Agencies)
![Students take an English language test on an open field at a school in Kisumu, Kenya, May 31, 2018, because the classroom was too crowded to prevent cheating. (Photo/Agencies)](http://www.ecns.cn/hd/2018/06/01/e397c9403c6d4fd68b15f47b92014fa5.jpg)
Students take an English language test on an open field at a school in Kisumu, Kenya, May 31, 2018, because the classroom was too crowded to prevent cheating. (Photo/Agencies)