-- Who broke the glass?
-- I suppose _____ must be one of the children.
| A．the one | B．he | C．it | D．who |
No government can justly claim authority it is based on the will of the people．
| A．after | B．unless | C．so that | D．while |
The music sounded， the end of the class．
| A．indicating | B．indicated | C．to indicate | D．indicate |
Carbon
dioxidefrom burning fuels is the most common of the so-called greenhouse gases.
| A．produced | B．producing | C．to be produced | D．having been produced |
Staring at the priceless diamond amazement, Mary dreamt of getting one．
| A．with | B．by | C．at | D．in |
Tomwith his grandmother for eight years，but now he is living by himself.
| A．lives | B．1ived | C．has lived | D．has been living |