Tolya said they had had a grammar class the day before and they had discussed the use of articles in English.
Vera wasn't surprised and said they were the shortest and yet the most difficult words in English.
Tolya added that he didn't think all English people understood how they should use the articles.
Vera agreed with him. She said in many cases they were a complete mystery. Then she asked Tolya if he thought one could realize the difference between the articles and if it was possible to learn how to use them.
Tolya answered he was not quite sure, but their teacher said it was and they should simply have more grammar drills.
Vera doubted if they would really help. She said grammar drills were so boring.
Tolya told her not to lose hope. He suggested that they should hope for the best.
Везде где ing - герундий. Удачи!