填入适当的词使短文意思完整
People have looked at the moon and __76___poems for thousands of years,but nobody expected to go there _77_____1961 when Yuri Gagarin made the first manned space flight.Then the Americans decided to send a man to the moon. Apollo 11 took off on 16 July.The journey __78__four days.On 21 July Neil Armstrong _79___the first man to walk on the moon.There were six manned missions to the moon between 1969 and 1972.We’ve learnt a lot about the moon. Nothing has _80___ lived on the moon. Life on the moon won’t be easy. It will be difficult and dangerous.
76 ______ 77______78 ______79 ______ 80 ______
小题1:written
小题2:until
小题3:took
小题4:became
小题5:ever
题目分析：
小题1:本题需要的是动词_又根据poems，可知答案为written
小题2:not ···until表示直到···才，故选until
小题3:took在本句的意思为花费的意思。
小题4:became表示成为的意思，符合题意。
小题5:ever,用在现在完成时，表示曾经的意思。
点评：注意上下文的内容联系。