Many teachers believe that the responsibilities for learning lie with the student. {#blank#}1{#/blank#} a long reading assignment is given, instructors expect students to be familiar with {#blank#}2{#/blank#} (inform) in the reading even if they do not discuss it in class or take an examination. The ideal student is considered to be one who is motivated to learn for the sake of learning, not the one interested only in getting high grades. Sometimes homework is returned {#blank#}3{#/blank#} brief written comments but without a grade. Even if a grade is not given, the student is {#blank#}4{#/blank#} (responsibility) for learning the material assigned. When research {#blank#}5{#/blank#} (assign), the professor expects the student to take it actively and to complete it with minimum guidance. It is the student's responsibility to find books, magazines, and articles in the library. Professors do not have the time to explain {#blank#}6{#/blank#} a university library works; they expect students, {#blank#}7{#/blank#} (especial) graduate students, to be able to exhaust the reference origins in the library. Professors will help students who need it, but prefer that their students should not be too dependent on them. In the United States, professors have many other duties {#blank#}8{#/blank#} teaching, such as administrative or research work. Therefore, the time {#blank#}9{#/blank#} a professor can spend with a student outside of class {#blank#}10{#/blank#} (limit). If a student has problems with classroom work, the student should either approach a professor during office hours or make an appointment.

    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 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.