It’s really very dangerous, one more step, _____ the baby will fall into the well.
He is ____ diligent pupil, but she is ___ diligent of all.
The policeman caught the thief by ___ arm.
I saw ___ boy and ___ old woman sitting at the table.I thought ___ old woman must be ___ boy’s grandma.
Taiwan is ___ island, it is ___ large island of China.
____ knowledge is better than ___ wealth.