It is uncertain ______ side effects these weight-loss drugs will bring about, although hundreds of thousands of patients have taken it.
#79260
A
that
B
whether
C
how
D
what
推荐题目
---Look at those shoes, Mike!  ---Wow! They look very cool, but I wonder ________.
#38366
A
how much are they
B
how much do they cost
C
if my parents will buy them for me
D
that my parents will buy them for me
---Could you please tell me ___________?   ---Of course. For over ten months.
#37866
A
how long has he left school
B
how long he has left school
C
when he left school
D
how long he has been away from school