閱讀下列各小題，根據括號內的漢語提示，用句
末括號內的英語單詞完成句子，并將答案寫在答題卡上的相應題號后。
71. The situation of unemployment has not been so serious ___________________________ (所期待的). (expect)
72. Tom has been playing basketball on the playground, ___________________________ (臉上全是汗水). (cover)
73. ___________________________ (余下要做的) is an accurate description of the long process of the experiment. (leave)
74. It’s widely accepted that never in history ___________________________ (有過) a more successful opening ceremony than that of the Beijing Olympics. (there)
75. During my last trip my cellphone was left in a hotel accidentally, ______________________ (再也找
不到) . (find)
76. He told us that he was very happy ___________________________ (他現(xiàn)在的處境) . (be)
77. Qian Xuesen went to California from 1935 to 1955, ___________________________ (在那時期) he concentrated on the research into jet planes. (period)
78. I have no idea whether the machine can be used again but it __________________________ (在維修) in the morning. (repair)
79. Did you know ___________________________ (到底怎么) the nuclear explosion occurred in Japan? (it)
80. The air hostess required that___________________________ (我們坐著) until the plane had come to a complete stop. (remain)
