.--- What made you so worried?--- ___ the plane.A.Because I missed B.Because of missing C.I missed D.MissingB为什么不对，我就疑惑在B

.--- What made you so worried?--- ___ the plane.A.Because I missed B.Because of missing C.I missed D.MissingB为什么不对，我就疑惑在B
.--- What made you so worried?
--- ___ the plane.
A.Because I missed B.Because of missing C.I missed D.Missing
B为什么不对，我就疑惑在B

.--- What made you so worried?--- ___ the plane.A.Because I missed B.Because of missing C.I missed D.MissingB为什么不对，我就疑惑在B
选D,前三项不能作为What的回答.
希望我的回答对您有所帮助!

b

d

因为他的开头是过去式
所以已经是过去的时间发生的事情了
所以要用从句