

MCQOPTIONS
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1. |
Improve the bracketed part of the sentence._x005F_x000D_ Â _x005F_x000D_ I won't be able to leave for office until they (arrive)._x005F_x000D_ |
A. | have arrived |
B. | had arrived |
C. | will have arrived |
D. | no improvement |
Answer» B. had arrived | |