He won in the story competition and his parents were very .
A:smart
B:proud
C:sorry
D:upset
实验次数
物重
G/N
物体上升的高度h/cm
测力计的示数F/N
测力计移动的距离s/cm
1
6
3
9
2
5
2.5
15
8
24
写出下列动词的现在分词形式。
have(现在分词)____
隋朝时,一位商人从今天的杭州由水路到洛阳做生意,他先后要经过( )