Question

______ Lucy were not given timely treatment, she would suffer from a cough for the rest of her life shocked her parents.

1. A.
   That
2. B.
   If
3. C.
   That if
4. D.
   If that

Answer 1

C
if 從句做主語(yǔ)，不少成分用that, that不可省。整個(gè)句子的謂語(yǔ)為shocked