HE IS ANXIOUS ABOUT LEAVING FOR HOME SOON. HE HAS HAD NO NEWS OF H...

76. He is anxious about leaving for home soon. He has had no news of his family for two weeks.A. Being anxious about leaving for home soon, he has had no news of his family for twoB. He is anxious about leaving for home soon because he has had no news of his family for two years.C. He is anxious about leaving for home two weeks earlier so that he has some news of his family.D. He is anxious about leaving for home two weeks earlier so that he has some news of his family.PHẦN 14: HOÀN THÀNH VĂN BẢNChọn 01 cụm từ hoặc câu trong 04 lựa chọn cho sẵn trong mỗi câu hỏi để điền vào chỗ trống tương ứng trong bài luận đã cho.RADICAL WAYS TO 'REFREEZE' THE ARCTICAn iceberg would then form naturally inside, before being ejected a month later. According to the team behind the project, the hexagonal shape may encourage the icebergs (or "ice babies" as Kotahatuhaha refers to them) to interlock with one another and form larger frozen masses.(77)________ The designers are yet to finalize how the vehicle would be powered, though they intend for the vessel to be fully sustainable. But could the submarines, in theory, work?Andrew Shepherd, a professor of Earth observation at the UK's Leeds University, described the idea as an "interesting engineering solution," though he questioned the project's scalability. He estimated that replacing polar ice at the same rate it has disappeared in the last four decades would require around 10 million submarines."That's a lot of machines," Shepherd said in an email. "For context, that's not far off the total number of Model-T Fords built in all time."(78)________ "The Arctic has lost ice from year to year in the last decade," he said on the phone from Jakarta. "So we tried to solve the problem through a different way of thinking."Richer countries have millions to spend on (sea walls and) protection, but what about poor countries with no budget for (defending against) rising sea levels? This is a problem the world now faces together. We have a different approach: (79)________”A possible flaw in the proposal -- and others like it -- is that making ice does not significantly alter sea levels. If the ice is still floating in the water it formed from, then sea's overall mass doesn't change. (The icebergs would have to be "moved on to land" if they were to lower sea levels, Shepherd said).(80)________. Snow and ice reflect significantly more sunlight than open water does, so bigger, frozen surfaces mean more radiation is sent back to space.