______ herself with routine office tasks, she had no time to attend to her children.
| A．Occupying | B．Occupied | C．Being occupied | D．To be occupied |
Safety in school has been of great concern because of frequent reports about
accidents students got injured or killed while in school. .
| A．in which | B．for which | C．which | D．when |
A forest is usually found heavy rainfall is frequent.
| A．in which | B．which | C．where ` | D．that |
— Honey, let's go out for dinner.
—I don't have to cook.
| A．Forget it! | B．That's great! | C．Why? | D．Go ahead! |
As we know, Potala Palace, a combination of Tibetan construction art and culture, is considered precious treasure of China.
| A．a; a | B．the; a | C．the; the | D．a; the |
— What is the price of petrol these days?
— Oh, it sharply since last month.
| A．is raised | B．is increased | C．has arisen | D．has risen |