It is uncertain ___ side effects these w
题型:选择题
问题:
It is uncertain ___ side effects these weight-loss drugs will bring about, although hundreds of thousands of patients have taken it.
A.that
B.whether
C.how
D.what
It is uncertain ___ side effects these weight-loss drugs will bring about, although hundreds of thousands of patients have taken it.
A.that
B.whether
C.how
D.what