1．上文solve various problems和I find very useful与选项C to find out the most efficient way to
get around an obstacle逻辑相符。
2．上文often these solutions will be unpleasant at first glance与选项B But if…the solutions will
actually work逻辑相符。
3．只有选项E与lose weight有关。
4．选项F中的with someone与下文how that person…逻辑相符。
