Questions 26 to 35 are based on the following passage. As the recent courgette( 密生西葫芦 )cr and shortages of lettuce, eggplants and broccoli( 绿花椰菜 )have shown, Spain ’ s fame as the vegetable garden of Europe is well deserved. The country ’ s huge agricultural sector — courgettes, lettuces, tomatoes and strawberries — 26 a huge demand. There has been a major 27 towards mechanization since the 1950s, but just as in the UK, many crops still need to be harvested by hand, and many farmers rely on migrant labour. Even where mechanisation can be used, picking machines tend to be too expensive and 28 for small-scale farmers. The tension between locals and migrant workers, 29 from North and Sub-Saharan Africa and eastern Europe — is not a big problem, as many of the foreign workers have proper 30 and return to the same farms year after year. They ’ re known and that ’ s important. Alfrut — a company in the south-western province of Huelva that exports strawberries, raspberries, and other fruits around the EU — shill harvests by hand. “ There is a machine that gathers strawberries, but you have to 31 the crop to the machine, ” says Agustin Muriel, a technical and quality control expert at Alfrut. “ If we were to use machines, we would have to 32 our entire infrastructure and it would require a lot of investment in machinery, which is designed mainly for large areas and really big companies. ” He adds that the 33 , manual approach is likely to continue for the 34 future, as fruit prices aren ’ t high enough to allow farmers to make big 35 in machinery or spend money reconfiguring( 重 新 配 置 )their operations. A)adapt B)attach C)contracts D)feeds E)foreseeable F)heralds G)impractical H)inaccessible I)investments J) modify K)predominantly L)preference M)shift N)traditional O)unexpectedly