Everyone knows that _______ is dangerous to play with fire, but _______ is difficult is to prevent children from playing with fire.
#16314
A
it, it
B
what, what
C
it, what
D
what, it
推荐题目
 —Do you have _______ to say today?—No, nothing. 
#56935
A
something important
B
nothing important
C
important something
D
anything important
 We must find a dictionary. ____ will do.
#16525
A
Some
B
Any
C
Every
D
Each