More and more problems appeared ________the increasing use of short messages sent by cell phones．
| A．for | B．to | C．at | D．with |
Her face went red _____ he had said.
| A．because that |
| B．because what |
| C．because of what |
| D．because |
The teacher asked an easy question, but not a proper answer _____.
| A．came up |
| B．keep up |
| C．catch up |
| D．was come up |
When Li Ming got to America, he found his English was quite different _____ he had learned in China.
| A．from which |
| B．of that |
| C．from what |
| D．from the one |
He promised to _____ me with a beautiful gift.
| A．give |
| B．present |
| C．offer |
| D．buy |
Children are usually mean. _____ they take much, they won’t give.
| A．Even so |
| B．Even if |
| C．Since |
| D．But |