阅读下面材料，在空白处填入适当的内容（1 个单词）或括号内单词的正确形式。
Chinese President Xi Jinping has praised a group of middle school students for their efforts in satellite design. He said he was pleased with their curiosity and bravery in {#blank#}1{#/blank#} (science) exploration. The president also wished the teachers and students in Bayi School {#blank#}2{#/blank#} happy new year.
Xi made the praise in a letter {#blank#}3{#/blank#} (write) to the students in Beijing's Bayi School on Saturday. A small satellite designed and developed by them {#blank#}4{#/blank#} (send) into space last Wednesday at Taiyuan Satellite Launch (发射) Center {#blank#}5{#/blank#} it was designed to operate in orbit (轨道) for 180 days.
Three months ago, Xi returned to his high school, to visit a laboratory and talk to teachers and students {#blank#}6{#/blank#} were designing the small satellite. The president said he was {#blank#}7{#/blank#} (extreme) glad to know that the satellite designed by the students would be launched and called on them to become {#blank#}8{#/blank#} (build) of the country. Xi warmly encouraged the students {#blank#}9{#/blank#} (study) science and contribute to the development of China. He hoped that the students would keep hungry for knowledge and develop {#blank#}10{#/blank#} (they) national spirit.
