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1. The Space Age ________ in October 1957 when the first artificial satellite was launched by the Soviet Union. A. initiated B. orginated C. embarked D. commenced launch发射升空 lease租约 answer：D 2. John said that he didnt quite ________ and asked me to repeat what Ihad said. A. snatch up掠夺忽然行动 B. summon up鼓起勇气积累信心 C. catch on D. watch out当心 表示明白的六级2个词组 make sense of / catch on =understand answer：C 3. When he tried to make a ________, he found that the hotel that he wanted was completely filled because of a convention. A. complaint B. claim C. reservation D. decision answer：C 4. A budget of five dollars a day is totally ________ for a trip round Europe. A. inadequate不够的不充分的 B. incapable无能的、绝望的、无助的 C. incompatiblecompatible D. invalid违法的、无效的、不正确的、无理由的 | 
