问题补充:
ˉWhat do you think made Tom so upset?
ˉ her new bicycle.
A. Because of
B. Lost
C. As she lost
D. Losing
答案:
A. Because of
B. Lost
C. As she lost
(答案→)D. Losing
解析:本题考查非谓语动词。将答语还原为完整句: her new bicycle made Tom so upset。可发现空白处在句子中充当主语,只能用-ing 形式,答案是losing