2.1 won't believe there are aliens until I see them.
I believe there are aliens I see them.
2. will;if/when
題目來源：仁愛英語同步練習簿九年級上下冊 > Topic 2 I'm excited about the things that will be discovered in future.
科目：初中英語 來源： 題型：
well, spend , relax, result, communicate, though，useful，without，invent，besides
The computer was 1 in 1946. It's a 2 invention. People can work 3 and faster with computers. People use computers to 4 after work，such as playing games， listening to music and so on. With the help of the Internet，people can 5 with each other by sending e-mails and chatting online 6 writing letters. People can go shopping 7 going out. 8 computers have improved our life,they have brought problems as well. Many students 9 too much time playing computer games or chatting. As a 10 ，they do worse and worse in their lessons.
1._______ 2.________ 3.________ 4.________
5._______ 6.________ 7.________ 8.________
9._______ 10.________
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科目：初中英語 來源： 題型：
( ) 2. The plane was invented Wilbur and Orville Wright.
A. of B.by C.to D. from
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科目：初中英語 來源： 題型：
( ) 2.Human beings have not discovered any life in space yet.
A. looked B. found
C. invented D. searched
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2. People sometimes use a radio to listen to the news.(改為同義句）
A radio sometimes listening to the news.
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