1) I want to introduce you to my friend,__________________ had wished to meet you for a long time A. that B.who C./ D.whom 2) I have even begun to sing while playing the guitar but I have not been very _____________ A. Successfully B.Successful C. Succeed D.Success 3) Many football fans are unfairly accused of ________________ behavior A. inviolence B. violently C.violate D.violent 4) David is said _____________________ a terrible accident last week A. to be caused B. to have caused C. to have been caused D. to cause 5)The old man is said ________________ all his money to an old people's hone when he died A. have left B.to have left C. to leave D. to leaving 6) chia thì : I first met Lisa three years ago.She (work) _____________ at a radio shop at that time. 7) John is believed ______________ the coming competition A. to have won B .win C. to win D.to winning 8) When I arrived , there was a group of people _________________ outside that house. A. wait B. to wait C. waited D. waiting 9) It was Shirley Temple Black which represented her country in the United Nations and later became an ambassador. A. which B.It C. later D. represented giúp mình nhéee đáp án + giải thích thật kĩ nhé