Question

___________Mrs Smith worked day and night, he found it difficult to make enough money to support such a large family.

1. A.
   Since
2. B.
   If
3. C.
   Once
4. D.
   Although

Answer 1

D
试题分析：考查连词：A. Since自从B. If如果C. Once一旦D. Although虽然，句意：虽然斯密斯太太日日夜夜工作，但她发现很难挣足够的钱养活一家人。选D。
考点：考查连词辨析
点评：连词的词义辨析要放在上下文的语境中进行，要注意上下文的语义的串联以及逻辑关系的推理，特别要注意一些连词和时间状语的固定搭配。