A:生长现象
B:进行呼吸
C:繁殖
D:对外界刺激作出反应
Mrs. Smith helps me a lot my English. I often ask her help when I have problems with English.
注意: 1)字数 100 左右;
2)可以适当增加细节,使文章行文连贯。
Dear Sir/Madam,