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thenIhavebeeninterestedinclowns.A.SinceB.FromC.ByD.After
题目详情
________ then I have been interested in clowns.
A.Since
B.From
C.By
D.After
A.Since
B.From
C.By
D.After
▼优质解答
答案和解析
Since then
since + 过去时间或过去时的从句 表示自从.
主句用现在完成式
from then on 题中没有on
by 表示直到 后面是过去时,主句用过去完成时,后面是将来时,主句用将来完成时
after then 主句一般用过去完成时
since + 过去时间或过去时的从句 表示自从.
主句用现在完成式
from then on 题中没有on
by 表示直到 后面是过去时,主句用过去完成时,后面是将来时,主句用将来完成时
after then 主句一般用过去完成时
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