There were many people standing by, but _____ of them were willing to help the poor boy.
| A．neither | B．none | C．all | D．both |
Wherever such an area is located, it will be immediately ______ by the enemy if armed forces are lacking.
| A．taken | B．caught | C．occupied | D．kept |
His hard work paid______ when he got the result.
| A．back | B．over | C．off | D．for |
While typing, Helen has a habit of stopping ______ to give her long and flowing hair a smooth.
| A．now and then | B．over and over | C．up and down | D．here and there |
In order to ______ his muscle, Mike goes to the gym regularly to do exercise.
| A．sharpen | B．brighten | C．strengthen | D．deepen |
You were my ______ when I was weak; you were my voice when I couldn’t speak.
| A．ability | B．strength | C．energy | D．force |