C on charge of D on the charge of 17. The dentist his decayed tooth again A. repaired B. filled mende D. cured 18. Medical care reform has become this country's most important public health problem B. issue C question D. matter 19. The river comes from a number of A. origins B ways C place D. sources 20. The government is going to take measures to the price A put down B turn downC. on charge of D. on the charge of 17. The dentist _______ his decayed tooth again. A. repaired B. filled C. mended D. cured 18. Medical care reform has become this country's most important public health ________. A. problem B. issue C. question D. matter 19. The river comes from a number of ________. A. origins B. ways C. places D. sources 20. The government is going to take measures to _______ the price. A. put down B. turn down