Giải thích giúp em với ạ 14. Students must achieve ..................... knowledge before being major in their optional field A. studies B. general C. skills D. ideas 15. The college offers a ................. and stimulating environment in which to study. A. boring B. challenging C. thrilling D. frightening 16. They were very ------------ at the result of the game A. disappoint B. disappointed C. disappointing D. disappointingly 17. The judge will ........................... and mark your performance A. observe B. score C. write D. award ACTIVITY 2 : Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. 18 Miss White thanked Peter ……… her the present. A. for giving B. to give C. giving D. on giving 19 Tom apologized for………. me earlier. A. not ringing B. not to ring C. not ring D. to not ring 20 Have you got any difficult in ……..these answers ? A. learn B. to learn C. having learnt D. learning 21. The old lady prevented the boy ------- touching that flower. A. from B. to C. against D. for 22. Johnny always dream--------- a pilot. A .of being becoming B. to become C. of becoming D. to become 23. We are looking forward ------ from you soon A. to hearing B. from hearing C. of having heard D. at hearing. 24. The policeman ------the thief from leaving the shop. A. warned B. accused C. stopped D. thanked 25. The boys ----- having broken of my house. A. denied B. insisted C. apologized D. suggested 26. I wouldn’t ……………...of going to the party I hadn’t been invited to. A. think B. worry C. depend D. reply 27 The teachers ------- organizing an English speaking club contest for the students A. suggested B. offered C. promised D. decided