______ to too much sunlight, as is generally considered, will add to the potential of catching skin cancer.
| A．Being exposed | B．Exposed | C．Exposing | D．To expose |
. Like most of my schoolmates, I have neither brothers nor sisters---____,I’m an only child.
| A．in a word | B．in other words | C．more or less | D．far and near |
.The teacher used to stay up deep into the night. ______ , he made himself ill.
| A．However | B．Eventually | C．Moreover | D．Also |
.What________ pity that you couldn’t be there to receive ________ prize!
| A．a, a | B．the, a | C．the, the | D．a, the |
.Water, which seems to be so simple and common, is ______ makes life possible.
| A．that | B．which | C．what | D．where |
The number of students in this college _____ by 10% every year.
| A．rises | B．lifts | C．raises | D．arises |