请根据括号中的中文提示、英文释义或句意,写出句中所缺单词,使句子通顺。Alex is crazy about computer. He wants to be a computer {#blank#}1{#/blank#} (工程师)in the future.
Being tall gives him an{#blank#}2{#/blank#} (优势)over the other basketball players.
The young detective decided to{#blank#}3{#/blank#} (find out)the truth alone.
My father is not in.He has gone{#blank#}4{#/blank#} (away from one's own country)on business.
{#blank#}5{#/blank#} people can't hear,so they always use their hands to communicate.