79. _______ still puzzles me. A) He got selected president B) Where they got the idea from C) He has got a lot of money D) How can they beat us 80. I don’t know much about art but I know_______. A) what I like B) who is a good artist C) what is it like D) why are people paying that much 81. Do you think _______ man will travel to Mars in this century? A) is it possible that B) it is possible that C) will it be possible D) it became possible 82. Mike must explain his idea. It is important. It is important that Mike _______ his ideas. A) explain B) will explain C) explains D) would explain 83. Why is it necessary that _______? A) for him to study B) he will have an operation C) he consult an expert D) he applied for a job 84. He advised that she _______ the bad news. A) not be told B) not to be told C) isn’t told D) wouldn’t tell 85. He asked us whom we would visit. He asked us, “Whom _______?” A) will you visit B) would you visit C) you will visit D) we would visit 86. The teacher insisted on the students’ arriving punctually for their lessons. The teacher insisted that the students _______ punctually for their lessons. A) had arrived B) should arrive C) would arrive D) have to arrive 87. Most people don’t even know _______. A) why has he resigned B) where was he buried C) what good music is D) where did they take him 88. I refuse to believe her having told me the truth. I refuse to believe that she _______ me the truth. A) tell B) tells C) had told D) would tell 89. They proposed that a new highway_______. A) should build B) must build C) to be built D) be built (mọi người giúp em với ạ:(()