13. They’re a middle-........... couple, with grown up children. A. age B. aging C. aged D. old 14. I think she is accustomed to ........... English at a private school. A. taught B. teach C. teaching D. be taught 15. He ........... his friends to go camping with him. A. attracted​ ​ ​B. persuaded C. appealed​ ​​D. suggested 16. Tom admitted ........... the rock through the window. A. to be thrown ​B. being thrown​ C. throwing​ ​D. throw 17. It was difficult .......... a date which was convenient for everyone. A. to make B. making C. make D. made 18. This book is written by a famous author. It is very worth .......... A. read​ B. to read C. reading D. have read 19. Tom stopped .......... before his health declined rapidly. A. smoke B. smoking C. to smoke D. smoked 20. Teachers always expect students .......... well in exams. A. to do​ B. do C. doing​ D. done 21. He always tries .......... me. A. to avoid to meet B. avoiding meeting C. to avoid meeting​D. avoiding to meet 22. I remember .......... you before, but I have forgotten your name. A. meet​ B. met C. to meet D. meeting 23. Remember .......... the door after you have turn off all the lights. A. close​ B. closing C. to close D. closed 24. I just can’t ....... the winter so that I can go skiing again. A. wait until B. look forward to​ C. expect​ ​​ D. await 25. The boss asked all of his workers .... on time A. come B. coming​ C. to come D. came