they___the maths problem when i came in
A,worked on B,were woking on C,were working D,were working for
i ___the film yesterday,but i ___it tomorrow.
A,saw;see B,was seeing ;am not going to see C,see;would see D,didn't see;am going to see
说明理由,
人气：350 ℃ 时间：2020-03-29 13:36:04
解答
b 过去进行时 work on
d 第一个空用过去时态 第一个空用将来时态
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