题目内容
28. No decision about any future plan until we have done a thorough research of the teachers’ preference.
| A.has been made | B.is made | C.is being made | D.will be made |
D
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No decision _ about any future plan until we have done some research into the student preference.
| A.has been made | B.is made | C.is being made | D.will be made |