Part III. Each of the following sentences has one mistake. Identify the mistake by writing the letter A, B, C or D on the answer sheet and correct it. 21. He said he will go abroad with his parents the next month. A B C D 22. Learning foreign languages are necessary for us to have a good job.          A                                      B                   C                     D 23. The students were interesting in taking a trip to Hue city, but they were not able to raise enough money. A B C D 24. The street was such crowded that we couldnt drive so faster. A B C D 25. Peter saw an accident while he crossed the street.