You can go to the small island(岛)______.
A:by boat
B:on boat
C:by the boat
D:by a boat
This is Miss Wang. She is a teacher.
小明在显微镜的视野中看到一个“上”字,请问透明纸上写的字是( )
“种瓜得瓜,种豆得豆”,这句话描述了生物的____现象.