单选题 She became (angrier) as the years went (on) because she saw (that) they were doing to (other) youngsters.
  • A. angrier
  • B. on
  • C. that
  • D. other


【正确答案】 C
【答案解析】应改为what。what既是saw的宾语，又是从句中doing的宾语，表示“所……的”，而that没有这种用法。