选词填空．
of　　at　　into　　about　　 in
（1）Neil Armstrong flew to the moon

in

in

Apollo 11（"阿波罗"11号）
in 1969．
（2）Li Qiang spent

about

about

three hours in the library．
（3）Look

at

at

the river．The water is very clear．
（4）All the people of our country are proud

of

of

Yang Liwei．
（5）I want to go

into

into

space someday．