题目

根据首字母填上所缺单词
Dogs have been man's good friend for t( ) of years.Many
stories told how brave dogs hel;ed people in t( ).
The first spacetraveller was a dog n( ) Laika.It was set
up in a manmade earth satellite in 1957 by R( ) scientists.

提问时间：2020-10-11

答案

Dogs have been man's good friend for t(housands ) of years.Many stories told how brave dogs helped people in t(rouble ).The first spacetraveller was a dog n(amed ) Laika.It was set up in a manmade ear...