It's three years ________ I drank.应该选择since
It will be three years ________ we meet 应该选择before
three years passed ________ we met应该选择after
根据 时态 和句子意思 来选
It's three years ________ I drank.应该选择since
It will be three years ________ we meet 应该选择before
three years passed ________ we met应该选择after
根据 时态 和句子意思 来选