Hebecameanactorataveryyoungagebutitwasnearly20yearshebecamefamous．A.untilB.whenC.beforeD.that

Question

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

Answer 1

答案C
句型：It’s/will be+时间段before+从句：过了多久才……