The UN should﹍﹍the establishment of Iraqi government after the war, I think.
| A．take part in |
| B．play a leading role in |
| C．play a role among |
| D．play a important part for |
Not easy as the problem of pollution is____, no one should just stop trying.
| A．to solve | B．to be solve | C．solving | D．being solved |
Let us suppose that we _____him about it, what would have happened?
| A．had not told | B．did not tell | C．will not tell | D．don’t tell |
There’s no point trying to ___ with her because she will never change her mind.
| A．agree | B．compete | C．compare | D．reason |
___the survivors in the traffic accident appreciated the police before they left for their homes.
| A．The most of | B．Most | C．The majority of | D．The majority |
He has given up photography and he is ____computer now.
| A．interested | B．fond | C．in | D．into |