23. We went into a hall, on_____walls hung a few pictures of some famous scientists.
| A．its | B．which | C．whose | D．Those |
Did you notice the little boy _____ away?
| A．take the candy and run |
| B．took the candy and run |
| C．taking the candy and run |
| D．who taking the candy and running |
-Who were those people with the banners?
-A group _____ itself the League For Peace.
| A．calling | B．calls |
| C．called | D．is called |
The foreigner tried his best, but he still couldn't make his point _____.
| A．understand | B．understanding |
| C．to understand | D．understood |
Mr. Wang has two _____ sons； one has got married and the other has gone abroad.
| A．grow-up | B．growing-up |
| C．grown-up | D．grew-up |
The workers are pouring _____ steel into the model.
| A．melting | B．melted |
| C．melt | D．being melted |