Question

【题目】As we all know, it was _________ that resulted in the terrible car accident.

A. because of her carelessness

B. because she was careless

C. her being careless

D. she was so careless

Answer 1

【答案】C

【解析】本题可采用减元法，把强调句型中的It was…that…去掉，就不难看出该句缺少主语。Her being careless是-ing形式复合结构，在句中充当主语。故选B。