31. I'm ____ for my English test tomorrow.
A. focusing B. meditating C. remembering D. revising
32. He'll have to ____ and work harder or he'll fail the exam.
A. pull his socks up B. polish his head
C. empty his washing basket D. stick his neck out
33. Sally always hands in her homework on time and buys the teacher small presents.The other children hate her. She's such a ____.
A. teacher's toy B. teacher's jewel C. teacher's pet D. teacher's sweet
34. Electronic devices are bad for your eyes, and ____ from electronics could harm your body and cause permanent damage.
A. wave B. radiation C. radiator D. emission
35. Like children elsewhere, children in the US have greatly benefited ____ modern technology.
A. of B. from C. in D. with
