_______ the rapid growth of short messages sent by mobile phones, the increasing number of criminal cases appeared through short messages.
| A．For | B．By |
| C．As | D．With |
Much labor would have been saved if the electronic computers_____________ before.
| A．had invented | B．were invented |
| C．should have been invented | D．had been invented |
The mayor was charged with _______ his power for personal benefits.
| A．applying | B．abusing | C．taking | D．spending |
What she is addicted ________ her feel better temporarily and reduces the pain of separation.
| A．to making | B．makes | C．to makes | D．to make |
The handicrafts, ________ had been made by the students, were sold out soon.
| A．most of which | B．most of what |
| C．most of them | D．most of whom |
To tell you the truth, if it were not for the fact that you ________ my daughter, I would not take such pains to serve you.
| A．were | B．have been | C．had been | D．are |