By the end of last year we________(know)each other for ten y

By the end of last year we________(know)each other for ten y By the end of last year we ___ each other for ten years. 用正确形式填空By the end of last term,they __(work) there for ten y By the end of last term, they ___(work)there for ten years. By the end of last term,they ___(work)there for ten years. -- By the end of last month,Bruce _______ here for four year By the end of last year the railway___. By the end of last year he______about 1500 English words. By the end of last year,another new subway__in shanghai. by the end of last year用于什么时态 by the end of last The cost of living__up by ten percent at the end of last yea