It _______ long before we ______ the res
题型:选择题
问题:
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
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