9. It long before we the result of the e
题型:选择题
问题:
9. It long before we the result of the experiment.
A.will not be, will know
B.is, will know
C.will not be, know
D.is, know
9. It long before we the result of the experiment.
A.will not be, will know
B.is, will know
C.will not be, know
D.is, know