A:锐角三角形
B:直角三角形
C:钝角三角形
D:等腰三角形
根据句意及首字母或汉语提示,完成下列单词。 (1)The e____ is the biggest animal on land.(2)The old man p____ trees in spring every year.(3)My hobby is c____ stamps(邮票).(4)It's d____ to play football in the street.(5)Will you i____your teachers to your birthday party?