— Do you know the ________ "I am a singer"?
— Yes, I usually watch it on Friday.
A:sport
B:show
C:club
D:job
﹣ The novel seems a little boring.
﹣You won't enjoy it you put your heart into it.
十三岁的小勇最近一年多身体迅速增长,嘴巴上长出了毛茸茸的胡须,声音也变低变粗。小勇的上述变化( )
①表明他已经进入了青春期 ②表明他已经进入了成年期 ③是正常的,是成长过程中必然出现的现象 ④是身体不够健康的表现