Read the texts below. For questions (49-58) choose the correct answer (A, B, C or D). Write your answers on the separate answer sheet. Phones in the Classroom Hurt Everyone's Grades Students are using laptops and phones during class more and more often. Researchers suspect there can be a problem with that. People like to think they can multitask. But the brain actually can focus attention on just one thing (49) a time. When people switch between tasks, their So, there will be a delay as their attention from one task to another. Someone who is listening to one person talk, brains can't keep up with (50) (51) for instance, can't also listen to another. They can't even listen and read at the same time. So, what happens when students try to listen to a lecture while they check their email? Or participate in a classroom discussion while liking a (52) photos? Glass and Kang, psychologists who (53) at Rutgers University in Piscataway, N.J., thought this kind of multitasking might make it harder for students to learn. Their new data now confirm that it does. 49 A on 50 A nothing 51 A B with 52 A friends B everything have moved B move B friend's 53 A was working B working C at C anybody C are moving C friends' C works Din D everybody D D moves friend D work​