题型：单词拼写 题类：真题 难易度：普通
Alex is crazy about computer. He wants to be a computer （工程师）in the future.
Being tall gives him an （优势）over the other basketball players.
The young detective decided to （find out）the truth alone.
My father is not in.He has gone （away from one's own country）on business.
people can't hear，so they always use their hands to communicate.
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