Mobile phones emit microwave radio emissions. Investigators are questioning whether exposure to these radio waves might (34) ________to brain cancer. So far, the figures are not final. The precise evidence does not enable US to say in certain that mobile phones are definitely safe. On the other hand, recent research has not yet (35) ________clear adverse effect associated with the prolonged use of mobile phones.
(36) ________studies are now going on in numerous countries. Some of the results are contradictory but the others have shown an association between mobile phone use and cancer. However, these studies are preliminary and the issue need further, long - term investigation.
(37) ________the scientific data is more definite, it is advisable for people to try not to use mobile phone for long periods of time. Don’t think that hands free phones are any safer either. At the moment, research is in fact showing the opposite and they may be just as hazardous. It is also thought that young people (38) ________bodies are still growing may be at particular risk.
Question 34.       A. lead                          B. cause                        C. produce                    D. bring
Question 35.       A. created                     B. proved                      C. demonstrated           D. caused
Question 36.       A. Lots                          B. A lot                         C. Many                        D. Much
Question 37.       A. Until                         B. When                        C. Although                  D. As
Question 38.       A. who                          B. that                           C. whom                       D. whose
Đề thi thử THPT Quốc Gia năm 2022 môn TIẾNG ANH - Penbook Hocmai - Đề 6 (File word có giải)