分类：教育/科学-学习帮助
问题：选词填空astronaut|discover|life|scie 
astronaut|discover|life|scientist|cecraft(1)(        )first landed on the moon in1969,more than 30 years ago.The men travelled to the moon in a(2)(         ).It took them four days to get there.The astronauts(3)(         )many interesting things,but they did not find any(astronaut|discover|life|scientist|cecraft(1)(        )first landed on the moon in1969,more than 30 years ago.The men travelled to the moon in a(2)(         ).It took them four days to get there.The astronauts(3)(         )many interesting things,but they did not find any(4)(         )on the moon.(5)(        )do not think there has ever been life on the moon.
回答：(1)An astronaut
(2)spacecraft
(3)discovered
(4)life
(5)scientists