The idea for the new plan came to his mind, to his experiment in the lab.
| A．while devoting | B．while devoting himself |
| C．while he was devoted | D．while devoted |
_____ some teenagers don’t realize is ____ difficult life can be after they get addicted to drugs.
| A．What; how | B．That; how | C．That; what | D．What ; what a |
When I got off the crowded bus, I found my pocket _____ and the disk in it with the important documents gone.
| A．picked | B．stolen | C．missing | D．lost |
The newly discovered star was named _____ a Chinese astronomer ____ honor of his contributions to astronomy.
| A．for; in | B．after; for | C．as; in | D．after; in |
Hundreds of people gave their lives in _____ of freedom.
| A．protection | B．guard | C．defense | D．favor |
The Chinese astronauts were so struck by ____ beauty of _____ nature that they took lots of pictures in space.
| A．/; / | B．/; the | C．the; the | D．the; / |