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He became an actor at a very young age but it was nearly 20 years he became famo

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He became an actor at a very young age but it was nearly 20 years he became famo

He became an actor at a very young age but it was nearly 20 years ________ he became famous.

[]

A.until

B.when

C.before

D.that

试题答案

答案:C

解析:

句型:It’s/will be+时间段before+从句:过了多久才……