Question

____________better ways for digging tunnels__________, the first railway tunnel under the River Thames     was dug in 1884.

1. A.
   As , developing
2. B.
   With, developed
3. C.
   As , were developed
4. D.
   With, development

Answer 1

C
试题分析：考察as和with用法。As是连词表示随着；with是介词，后面接复合结构“with+宾语+宾语补足语”；本句可以使用“As  better ways for digging tunnels developed”；也可以使用“with better ways for digging tunnels developing”；句意：随着更好的挖掘方法的改善，第一条泰晤士河底的隧道在1884年开通了。故C正确。
考点：考察as和with用法
点评：这两个词都可以表示“随着…”；as是连词，后面要接句子，而with是介词，后面要接复合结构“with+宾语+宾语补足语”。