Question

---These days I feel exhausted and lack strength.
---That’s _____too much drinking and poor diet lead

1. A.
   what
2. B.
   which
3. C.
   why
4. D.
   where

Answer 1

D
试题分析：本句中含有一个表语从句where too much drinking and poor diet lead.放在系动词is的后面构成系表结构。句意：—这些日子我感觉很疲惫，没有力气。—那就是喝太多的酒和不好的饮食带来的影响。AB两项在句中要作为主语或者宾语或者表语。Why在句中做原因状语。故D正确。
考点：考察表语从句