______the bones under the sand，the scientists concluded that they came from the dinosaurs about 65 million years ago．
| A．Being inspected | B．Inspected |
| C．Having inspected | D．To inspect |
—Have you moved into your new classroom building?
—Not yet, it ______________.
| A．was painted | B．is painted |
| C．has been painted | D．is being painted |
After a long walk, they were _______tired that they could not move even one step further.
| A．too | B． as | C．so | D．such |
Alice is stubborn, as you know. She trusts you and only you can ____ her to give up the foolish idea.
| A．hoped | B． persuade | C．suggest | D．make |
It was not until late in the evening _____ her husband arrived home.
| A．which | B．when | C．that | D．How |
The telephone _____ three times in the last hour, and each time it _____ for my sister.
| A．had rung; was | B．has rung; was | C．rang; has been | D．has been ringing; is |