_________ your help, we completed the work in time.
| A．Under | B．With | C．Because | D．As a result |
The government has made laws to protect animals，so the number of the endangered animals ________ in recent years.
| A．had grown | B．grew |
| C．has grown | D．is growing |
There is an ongoing debate about the potentially harmful effects ________ text messaging can have on people's grammar.
| A．what | B．who |
| C．that | D．whose |
We invited her to dinner but she didn't bother to ________.
| A．turn on | B．turn away |
| C．turn up | D．turn out |
________ the words，the daughter understood what her mother was trying to tell her.
| A．To be heard | B．To hear |
| C．Heard | D．Hearing |
This vase ________ perfect but for a few small holes in its base.
| A．would have been | B．should have been |
| C．shall be | D．would be |