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