A:(﹣4,0
B:(﹣4,4)
C:0,4)
D:(0,4)
大卫的成功不是偶然的,那是他艰辛努力的结果。
David's success didn't come ____ ____ . It was the result of his hard work.
扩句
他穿着海军服。
0.1、0.3、0.5、0.7、____、____.
The rivers ____ ____ because there was little rain.