20.—Though it is 30 years _____ we last met, I still remember the scene _____ we got separated on a rainy day.
A.since; where | B.before; which | C.since; when | D.before; where |
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20.—Though it is 30 years _____ we last met, I still remember the scene _____ we got separated on a rainy day.
A.since; where | B.before; which | C.since; when | D.before; where |