50012 I found it difficult to solve the puzzle. CK 56652 I had difficulty in solving this problem. CK 43620 It was easy for him to solve the problem. CK 238665 No one could solve the problem after all. CK 682047 No one was ever able to solve the riddle. Source_VOA 2662928 That's the next problem we need to solve. CK 45448 The group tried to solve social problems. CM 19019 The professor solved the problem at last. CK 1485641 This problem is too hard for me to solve. CK 2662915 Tom hoped the problem would solve itself. CK 291321 He does not know how to solve the problem. CK 56647 It is no use trying to solve this problem. CK 2662889 That would solve the problem, wouldn't it? CK 2006372 That's too hard a problem for me to solve. AlanF_US 681538 The mystery of her death was never solved. Source_VOA 249794 This problem is difficult for me to solve. CK 2956517 Tom didn't know how to solve this problem. CK 43686 You couldn't solve the problem, could you? CK 36589 Even the greatest scholar can't solve that. CM 291335 He found it difficult to solve the problem. CK 851096 He was able to solve the problem with ease. papabear 43629 He was the only boy who solved the problem. Dejo 2662866 I think I can solve this problem by myself. CK 43630 It was clever of Bob to solve that problem. CM 807474 President Hoover tried to solve the crisis. Source_VOA 2150419 Science will not solve all of our problems. Hybrid 2662852 Thank you for helping us solve the problem. CK 2662851 That was the only way to solve the problem. CK 54713 This is how I solved the difficult problem. CM 55971 This is too hard a problem for me to solve. CK 291329 He had no difficulty in solving the problem. CK 255156 I could not solve this problem by any means. CM 682046 My brother helped me solve the math problem. Source_VOA 241859 No one has succeeded in solving the mystery. CK 43645 She could solve the problem, and so could I. CK 305525 They were successful in solving the problem. juritch 55589 This is a problem for young people to solve. CK 60389 This is how he solved the difficult problem. CM 3171532 Tom found it difficult to solve the problem. CK 272807 Even the teacher could not solve the problem. CK 254708 I tried to solve the problem, but I couldn't. CK 283134 It is difficult for him to solve the problem. Zifre 246429 It is difficult for me to solve that problem. CK 246520 It is impossible for me to solve the problem. CK 291334 It took him ten minutes to solve the problem. CK 1485672 Mr. Thomas will be able to solve the problem. CK 285896 None of his students could solve the problem. U2FS 2889233 None of the students could solve the problem. astynk 37486 None of the teachers could solve the problem. CK 682049 Sometimes a clear path can solve the problem. Source_VOA