问题
uncertain ___ side effects theseweight-loss drugs will bring about, although hundreds of thousands of patientshave taken it
A:didshe beg4n
B:whenshe began
C:thatshe began
D:thatdid she begin
B:whenshe began
C:thatshe began
D:thatdid she begin
正确答案是：
同类题型
He has been acting strangely these days. I can’t________ his actions at all.
It be the vocabulary that caused you the problem in the exercise because you know a lot of words.
finally got up to leave,we both knew that a real friendship ________ between us