5. From this story, you can have some idea ______ can be used in reality.
| A．that you have learned | B．how what you have learned |
| C．how that you have learned | D．how you have learned |
21. Move a few steps, and the oil-paintings look better ______.
| A．in the distance | B．at once | C．in the open air | D．at a distance |
22. In fact, the untruthful words made ____ on me. You must answer for that.
| A．a surprise attack | B．much damage | C．a personal attack | D．a great harm |
23. Every Monday morning, all the teachers and students in our school stand at ____ as our national flag is raised.
| A．attention | B．attentions | C．at ease | D．Attentively |
24. --- What are the greatest ____ ?
--- A giant panda.
attraction B. attractions C. attractive D. Attract
25. Australia is an island continent lying between ____ .
| A．the Pacific Ocean and the Atlantic | B．the Indian Ocean and the Atlantic Ocean |
| C．the Arctic Ocean and the Pacific Ocean | D．the Pacific Ocean and the Indian Ocean |