用正确形式填空By the end of last term,they __(work) there for ten y

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 term,they (or ten years.原因! they must have finished the work by the end of last month,__ By the end of last year we________(know)each other for ten y The teacher said we __ ten lessons by the end of this term They will finish the work __ the end of this term.A :before By the end of last term they ________ over 1000words By the end of last term we___ English for two years. I _____1000 english words by the end of last term By the end of last year we ___ each other for ten years.