Question

It was very windy and cold, _____ they were still working hard in the field.
A. as         B. till           C. but          

Answer 1

C

試題分析： as因?yàn)椋�隨著，雖然，當(dāng)……時(shí)，till直到……為止，but但是，而是，然后。根據(jù)句意：天刮著大風(fēng)還很寒冷，他們卻一直在地里努力地工作。可知這里需要一個(gè)表示轉(zhuǎn)折的連詞。故選C。