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1£®To the sea captain’s surprise£¬he found that       travel could also be quite pieasant£®
   A£®earth          B£®1and         C£®ground         D£®plain
2£®Some famous singers live on the       from their record sales£®
   A£®salary         B£®value        C£®bill           D£®income
3£®Many countries are increasing their use of nature gas£¬wind and other forms of       £®
   A£®energy         B£®source       C£®power          D£®material
4£®You can take as many as you like because they are free of       £®