--- Will you waste your time and money on that?
--- Certainly ________.
| A．I not | B．don’t | C．not | D．no |
It was Tom ________ is a soldier ________ saved the little girl from the water yesterday.
| A．that；that | B．whose；whom |
| C．who；who | D．that；who |
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 |