ExercisesDownloads打开原始音频 / 视频 →B1 LISTENING TESTSQuestion 1 / 6请完成全部题目,最后查看答案与解析LISTENING · B1 ▶Listen and answerENChristie ...Ahas been pregnant 23 times.Bhas a one-year-old child.Chad trouble conceiving her 17th child.保存并进入下一题 →