—On 2014,April 16th,a South Korea ship carrying more than 450 passengers sank into the sea. Most of the pasaagers were students and lost their lives. —______ sad news.
He worked an artist for 10 years.
Neil Armstrong is the first man .
They took rock samples back to Earth for _____study.
He went into space as _____polit of Gemini 8.
Yang Zhenyu ______ physics ever since he studied in Primary school.