单词拼写。1. He was interested in a _____ and always stayed up at night to watch the stars.2. Computer ha

题目简介

单词拼写。1. He was interested in a _____ and always stayed up at night to watch the stars.2. Computer ha

题目详情

单词拼写。
1. He was interested in a _____ and always stayed up at  night to watch the stars.
2. Computer hackers have broken down security s ____,  raising questions about the safety
    of information.
3. There is a lot of rubbish ____(漂浮)on the surface of the river.
4. W _____(当心 )out! There is a car coming!
5. Every time an English runner won a race, the crowd c  ____  .
题型:填空题难度:中档来源:同步题

答案

1. astronomy   2. systems   3. floating   4. Watch   5. cheered

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