摘要： -Shall Mary come to the concert with us? -Not she has finished her paper. (大庆高三第一次教学质检) A. since B. once C. when D. unless
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-- Shall Mary come to the concert with us？
--Not_____she has finished her paper．
- A.since
- B.once
- C.when
- D.unless
---Shall Mary come to the concert with us？
---Not______she has finished her paper．
- A.since
- B.once
- C.when
- D.unless
Shall Mary come to the concert with us？
－Not she has finished her paper．
A.since B.once C．when D．unless
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