—What so you think made Mary so upset?—____her new bicycle.A.As she lost B.Losing
问题描述:
—What so you think made Mary so upset?—____her new bicycle.A.As she lost B.Losing
答
B .
验证方法很简单,就是把答案直接替换前一句的what
结果就是Losing her new bicycle made Mary so upset.