____ nobody was very enthusiastic about it,they decided to cancel the trip.A.seen thatB.seeing thatC.to seeD.when

____ nobody was very enthusiastic about it,they decided to cancel the trip.A.seen thatB.seeing thatC.to seeD.when
____ nobody was very enthusiastic about it,they decided to cancel the trip.
A.seen that
B.seeing that
C.to see
D.when

____ nobody was very enthusiastic about it,they decided to cancel the trip.A.seen thatB.seeing thatC.to seeD.when
拆开理解
They saw that nobody was very enthusiastic about it.
And they decided to cancel the trip.
把两句合起来就成了你的例句.
动词进行式和过去分词或者不定式可以用在状语里面表示一种状态.动词的形式就取决于动词所表示的动作与主语之间是什么联系.如果该动作是主语完成的,就用动词进行式表示伴随状态.例如：Seeing from the top of the mountain,we feel comfortable.在山顶上望去,我们感到心情舒畅.如果该动词与主语构成被动,那么就用过去分词,同样表示伴随状态.Seen from the top of the mountain,we are so small.（别人）看山顶上的我们如此的渺小.如果该动作是主语还未完成的意味,就用不定式,表示一种目的.例如：To be seen from the mountain,we were holding big flags with us .为了在山上时能被（别人）看到,我们举着大旗子.

____ nobody was very enthusiastic about it,they decided to cancel the trip.
A.seen that
B.seeing that
C.to see
D.when
B

选b表主动

B

这题不需要知道意思都知道选择b，因为句子缺少主语，能做主语的只有b

由于的意思，复杂连词引导原因状语从句，和主句they构成主动关系，则应选现在分词结构B记得采纳！谢谢！

b

b