. She is a kind-hearted woman and often has _____ mercy _____ people who are in trouble.
| A．a; on | B．\; on | C．a; o | D．\; to |
The book_______well.
| A．is sold | B．has been sold | C．selled | D．sells |
On _______ side of the river there are a lot of trees.
| A．both | B．any | C．either | D．neither |
At last she made herself ______ by drawing a picture.
| A．understand | B．to understand | C．understood | D．understanding |
I was about to go shopping _______ the telephone rang.
| A．as | B．while | C．when | D．as soon as |
The apartment caught fire last night. Fortunately, most of the people there _______ escape.
| A．could | B．were able to | C．meant to | D．tried to |