Wow, you are in high spirits. _________ makes you so happy?
#84801
A
What it is that
B
What is it that
C
What is that
D
What it that
推荐题目
 It was not until Susan came back ______her close friends were waiting for him. 
#84823
A
which she knew
B
which did she know
C
that she knew
D
that did she know
Whether you believe it or not, it was________ caused the serious accident.
#84762
A
because of your carelessness that
B
because you were careless
C
you were careless that
D
your being carelessness that