— Lily is about the competition.
— Yes, she is afraid that she won't win.
A：clear
B：nervous
C：happy
D：sure
——Have you finished your homework yet?——No, not yet. I think it'll take me __________ half an hour.
下列各项与激素的作用无关的是( )
在有括号的算式里，要先算____里面的.
