Câu hỏi:

SECTION III: READING 

Part 1. Questions 56 to 65

Read the passage below and choose the best answer to each question.

      Mobile phones emit microwave radio emissions. Researchers are questioning whether exposure to these radio waves might (56) _______ to brain cancer. So far, the data are not conclusive. The scientific evidence does not (58) _______ us to say with certainly that mobile phones are categorically (57) _______. On the other hand, current research has not yet (59) _______ clear adverse effect associated with the prolonged use of mobile phones.

      Numerous studies are now going (60) _______ in various countries. Some of the results are contradictory but others have shown an association between mobile phone use and cancer. (61) _______, these studies are preliminary and the issue needs further, long – term investigation.

      (62) _______ the scientific data is more definite, it is prudent for people to try not to use mobile phone for long (63) _______ of time. Don’t think that hands free phones are any safer either. At the moment, research is in fact showing the (64) _______ and they may be just as dangerous. It is also thought that young people (65) _______ bodies are still growing may be at particular risk.

Researchers are questioning whether exposure to these radio waves might (56) _______ to brain cancer