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1£®Have you got any ________(¾ßÌåµÄ)proposals as to what we should do?

2£®Don't get upset. I was only ________(¶º×ÅÍæ)£®

3£®The source of the river lies in Tibet and its ________(Ö§Á÷)cover much of the country.

4£®We are facing two ________(ÒýÆðì¶ÜµÄ)suggestions so we don't know what to do next.